Reference Design Cookbook for Power Management Products ... TI hopes that
this Cookbook will help to simplify and streamline your power supply designs.
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Reference Design Cookbook Power Management Products 3Q 2005
2
➔
Reference Design Cookbook Welcome Welcome to TI’s first Power Management Cookbook. Many thanks to Robert Kollman and his Design Services Team and TI Applications Engineering for supplying this collection of complete power solutions and design documentation from TI’s extensive library of reference designs and evaluation modules (EVMs) available to our customers. TI also has many other reference designs that can be found at: www.ti.com/powerreferencedesigns. If you do not find what you are looking for in this booklet, please check this website. It is frequently updated with new circuits. TI hopes that this Cookbook will help to simplify and streamline your power supply designs. Enjoy!
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Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
Table of Contents
Converter Design Topology
➔
Inside VIN
VOUT
IOUT (A)
Part Number
Page
Synchronous Buck
2.5 - 6.0
1.5
0.4
TPS62220
4
Synchronous Buck
2.5 - 6.0
1.8
1.2
TPS62040
6
Non-Synchronous Buck
12 - 18
9.6
1
TPS54350
8
Inverting Buck Boost
5
–5
1.5
TPS54350
10
6-A Monolithic Buck
4.0 - 6.0
3.3
6
TPS54610
12
5-V, 1-A Boost Converter
1.8 - 5.0
5
1
TPS61030
14
5-V, Non-Synchronous Buck in SOT-23
4.5 - 5.5
3.3
2.75
TPS64201
16
Sepic Controller
3.0 - 4.2
3.3
3
TPS43000
18
Low Input Voltage Synchronous Buck
3.0 - 5.5
2.5
15
TPS40007
20
12-V, Input Synchronous Buck
12
1.8
15
TPS40055
22
Negative Output Flyback
12
–12
0.5
UC3572
24
5 - 14
1.8
10
TPS40071
26
Dual Output Synchronous Buck
9.0 - 18.0
5.0 and 3.3
14 and 10
TPS51020
28
Wide Input Synchronous Buck
10 - 55
3.3
4
TPS40060
30
2-Phase Buck with Integrated Drivers
10 - 14
1.5
40
TPS40130
32
12
24
3.5
UCC38C4x
34
Isolated Synchronous Flyback
36 - 75
3.3 V
5
UCC3809
36
Triple Output Flyback
5 - 24
12/5/–5
1.0.5/0.3
UCC3813
38
Active Clamp Forward Converter
–36 - 72
3.3
30
UCC2580
40
Synchronous Switch-Mode Lithium-Ion Charger
4.35 - 16
2
bq24103
42
Synchronous Buck
UCC38C4x Boost
3
➔
Reference Design Cookbook
TI also has many other reference designs that can be found at: www.ti.com/powerreferencedesigns
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
4
TPS62220: 400-mA Synchronous Buck Converter in ThinSOT-23
Description The TPS6222x family of synchronous buck converters with integrated FETs in ThinSOT-23 can provide up to 400 mA of output current from inputs as low as 2.5 V. The circuit below was configured to provide 1.8 V at 400 mA with a 4.7-µH inductor and 10-µF output capacitor. The TPS6222x achieves high efficiency over the entire load current range by switching from traditional pulse width modulation (PWM) at high load to pulsed frequency modulation (PFM or Power Save Mode) at light load.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS62220
Min
Typ
Max
Unit
Input Voltage
2.5
3.6
6.0
V
Output Voltage
1.455
1.5
1.545
V
Load Current
0
400
mA
Output Ripple Voltage Efficiency
VIN = 3.6 V; IO = 10 mA
25
40
mVPP
VIN = 3.6 V; IO = 400 mA
5
10
mVPP
VIN = 2.7 V; IO = 100 mA
90
%
VIN = 3.7 V; IO =100 mA
87
%
Evaluation Module - TPS62220EVM-014 TPS62220 1
VI 2.5 V to 6 V C3 4.7 µF
Texas Instruments 3Q 2005
2 3
VI
SW
5
GND EN
FB
4
L1 4.7 µH
VO 1.5 V/400 mA R1 360 kΩ
C1 22 pF
R2 180 kΩ
C2 100 pF
C4 10 µF
Reference Design Cookbook for Power Management Products
TPS62220: 400-mA Synchronous Buck Converter in ThinSOT-23
5
Test Results Efficiency vs. Load Current
Load Transient Response
PWM Mode Operation
Power Save Mode Operation
Startup
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
6
TPS62040: 1.2-A Synchronous Buck Converter in MSOP-10 / 3x3 QFN
Description The TPS6204x family of synchronous buck converters with integrated FETs in 10-pin MSOP PowerPad™ or 3x3 QFN can provide up to 1.2 A of output current from inputs as low as 2.5 V. The circuit below was configured to provide 1.8 V with a 4.7-µH inductor and 22-µF output capacitor. The TPS6204x achieves high efficiency over the entire load current range by switching from traditional pulse width modulation (PWM) at high load to pulsed frequency modulation (PFM or Power Save Mode) at light load. Power save mode can be disabled by tying the MODE pin to VIN.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS62040
Min
Typ
Max
Unit
Input Voltage
2.5
3-6
6.0
V
Output Voltage
1.75
1.8
1.85
V
Load Current
0
1200
mA
Output Ripple Voltage Efficiency
VIN = 3.6 V; IO = 10 mA
30
40
mVPP
VIN = 3.6 V; IO = 1000 mA
10
15
mVPP
VIN = 2.7 V; IO = 1000 mA
90
%
VIN = 3.6 V; IO =1000 mA
87
%
Evaluation Module - TPS62040 TPS62040 VIN 2.5 V to 6 V C3 22 µF
2 3 1 6 4
VIN VIN EN MODE GND
8 SW 7 SW FB 5 10 PGND 9 PGND
L1 4.7 µH
VOUT 1.8 V/1.2 A R1 470 kΩ
C1 33 µF
R2 180 kΩ
C2 100 pF
C4 22 µF
Components: C1: Taiyo Yuden JMK316BJ226ML C2: Taiyo Yuden JMK316BJ226ML L1: Sumida CDRH4D28C-4R7
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
TPS62040: 1.2-A Synchronous Buck Converter in MSOP-10 / 3x3 QFN
7
Test Results Efficiency vs. Load Current
Load Transient Response
PWM Mode Operation
Power Save Mode Operation
Startup
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
8
TPS54350 : 12-V Non-Synchronous Buck Converter
Description The TPS54350 is a medium output current synchronous buck PWM converter with an integrated high-side MOSFET and a gate driver for an optional low-side external MOSFET. Features include a wide input voltage range (4.5 to 20 VDC) with an adjustable output voltage down to 0.9 V, an adjustable switching frequency up to 700 kHz, as well as current limit, adjustable under-voltage lockout circuit, an internal slow-start circuit to limit in-rush currents, and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out-ofphase synchronization. This device is also available in a thermally enhanced PowerPAD™ package.
Specifications Parameter
Test Conditions
Min
Input Voltage
12
Output Voltage
9.67
Load Current
0.02
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS54350
Typ 9.68
Switching Frequency
Max
Unit
18
V
9.69
V
1
A
500
kHz
Output Ripple Voltage
VIN = 18 V; VOUT = 9.68 V; IO = 1A
8
mVPP
Efficiency
VIN = 12 V; VOUT= 9.68 V; IO = 1A
95
%
VIN = 18 V; VOUT = 9.68 V; IO = 1A
94
%
Reference Design Number - PMP 718 6 V Max Pull-up Voltage TP1
R1 10 kΩ Sync TP3
Enable TP4
TP2 Power Good
12-18 V Input TP5 J1 VIN GND
1 2
TP8
U1 TP554350PWP C3 10 F 25 V
1 2 3 4 5 6 7 8
BOOT VIN VIN PH UVLO PH PWRGD LSG RT VBIAS SYNC PGND ENA AGND COMP VSENSE PwrPd 17
16 15 14 13 12 11 10 9
C1 0.1 F
2.5 kΩ
5600 pF
10 kΩ
C5 1 F 25 V
TP10
R8 R10
TP7
D1 MBRS340 SMC
C6 1 F
R7
C9
L2 100 H
TP6
C10
R9
VOUT J2 9.6 V @ 1 A 2 GND 1
TP9
49.9 Ω
C11 200 Ω 100 pF TP11
Texas Instruments 3Q 2005
1000 pF
R11 1.82 kΩ
Reference Design Cookbook for Power Management Products
TPS54350 : 12-V Non-Synchronous Buck Converter
9
Test Results Startup Waveform Turn On VIN = 18 V, VOUT = 9.68 V at 1 A
Efficiency
100% 95%
Efficiency
90% 85% 80% 75% 70% 65% 0
200
400 600 Load (mA)
eff 12 V
Output Ripple (across C5) VIN = 18 V at 1 A
800
1000
eff 18 V
Control Loop Gain/ Phase VIN = 15 V at 1 A
Phase
Gain
Phase Node Waveform (TP6 to GND from schematic pg. 8) VIN = 18 V; VOUT = 9.68 VOUT at 1 A
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
TPS54350: 5-V Inverting Synchronous Buck Boost Converter
10
Description PMP 546 uses the TPS54350 in a buck-boost mode to generate negative voltage from a positive one. This configuration can be used when the input plus the output voltage do not exceed the device’s voltage limitations of 20 V and when the sum of the input and output current do not exceed the device’s rated current of 3 A. The circuit functions by turning the hide-side switch on to increase the inductor current. Then the low switch or diode charges the output capacitor. Note, the output current is discontinuous so significant filtering is required.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS54350
Min
Typ
Input Voltage
Max
Unit
5
Output Voltage
–5.06
Load Current
0.03
Switching Frequency
250
Output Ripple Voltage
VIN = 5 V; VOUT = –5.05 V; IO = 1.2 A
Efficiency
VIN = 5 V; VOUT = –5.05 V; IO = 0.56 A
V
–5.05
–5.05
V
1.5
A
700
kHz
500 100
mVPP
75
88
%
Reference Design Number - PMP 546 6 V Max Pull-up Voltage TP1
R1 1.0 kΩ 0603 Sync TP3
Enable TP4
TP2 Power Good
U1 TPS54350PWP
TP5 J1 5 VIN
VIN GND
1 2
+
C2 220 µF
C3 10 µF
1 2 3 4 5 6 7 8
R2 100 kΩ
TP8 R4 43.2 kΩ
R5 0Ω
R6 OPEN
C8 4700 pF
VIN BOOT VIN PH UVLO PH PWRGD LSG RT VBIAS SYNC DGND SS/ENA AGND COMP VSENSE PwrPd 17
C1 0.1 µF
16 15 14 13 12 11 10 9
TP6
TP14
L2 22 µH +
8 7 6 5
C6 1 µF
C9
R7
R8
4700 pF
40 kΩ
100 kΩ
R10
C12 Q1 IRF7402 10 µF
4
C13 10 µF
C4 220 µF
C14 10 µF
VOUT J2 GND 2 -5 V @ 1.0 A 1
3 2 1
TP10
C15
R9
TP13 TP7
49.9 Ω
C11 10 kΩ
1000 pF
470 pF TP11
R11 21.5 kΩ 1
1
Do not connect to system ground
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
TPS54350: 5-V Inverting Synchronous Buck Boost Converter
11
Test Results Startup Waveform Turn On VIN = 5 V, VOUT = –5.05 V at 1.0 A
Efficiency 5 VIN
Efficiency 90% 80% 70% Eff (%)
60% 50% 40% 30% 20% 10% 0
200
400
600
800
1000
1200
1400
1600
Load (mA) Eff 5 V
Output Ripple (across C14) VIN = 5 VOUT at 1.0 A
Control Loop VIN = 5 VOUT at 1.0 A
Phase
Gain
Phase Node Waveform (TP6 to GND from schematic on page 10) VIN = 5 V; VOUT = –5.05 V at 1.0 A
Texas Instruments 3Q 2005
Phase Node Waveform (LSG Pin 13 of TPS54350) VIN = 5 V; VOUT = –5.05 V at 1.0 A
Reference Design Cookbook for Power Management Products
12
TPS54610: 5-V, 6-A Monolithic Buck Converter
Description The TPS54610 is a member of the SWIFT™ family of synchronous buck PWM converters. The TPS54610 DC/DC regulator is ideal for low input voltage, high output current applications. The TPS54610 integrates all required active components including a true, high-performance, voltage-error amplifier that enables maximum performance and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent Startup until the input voltage reaches 3 V; an internally or externally set slow-start circuit to limit inrush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing. The TPS54610 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS54610
Min
Typ
Max
Unit
Input Voltage
4.0
5.0
6.0
V
Output Voltage
3.27
3.3
3.3
V
Load Current
0
5
6
A
Switching Frequency
550
kHz
Output Ripple Voltage
VIN = 5 V; IO = 5 A
50
mVPP
Efficiency
VIN = 5 V; IO = 1 A
95.7
%
VIN = 5 V; IO = 5 A
91.4
%
Reference Design Number - PMP 771 TP6 VIN VIN GND
2 1
+
C1
+
1
C3 220 µF JP1
TP7
R3 1
J2
1 2 3 4
SYNCH SS/ENA GND PWRGD
C2 0.047 µF
R7 10 kΩ VIN
C4 0.1 µF
TP1 C5 68 pF
C6 6800 pF R1 9.76 kΩ
U1 TPS54610PWP 28
RT
VIN VIN SYNCH VIN VIN 26 SS/ENA VIN PH 25 VBIAS PH PH 4 PWRGD PH PH 3 COMP/NC PH PH PH PH 2 VSENSE BOOT PGND PGND PGND 1 ANAGND PGND PGND PwrPd 27
Optional
R2 3.74 kΩ
C9 10 µF L1 4.7 µH
TP2
TP4 J3 +
R8 1
C10 470 µF 4V
+
C11 470 µF 4V
+
C13 1000 pF
C12 1
VOUT GND
TP8
C14 1
C8
TP5
0.047
TP3 C7
1
24 23 22 21 20 14 13 12 11 10 9 8 7 6 5 19 18 17 16 15
R5
0.012 µF 1.18 kΩ R4
R6 49.9 Ω
10 kΩ
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
TPS54610: 5-V, 6-A Monolithic Buck Converter
13
Test Results Startup: The input voltage was set at 5.5 V with no load on the output.
Output Ripple Voltage: The image was taken with a 5-A load and 5-V input.
VIN
VOUT
Load Transients: The input voltage was set to 5 V. The 4-A load step shown below results in 60 mVPP of output ripple.
Efficiency
Efficiency vs. Load Current Using Electronic Load 97% 96% 95% 94% 93% 92% 91% 90% 89% 0
1
2
3
4
5
6
Load Current (A)
4 Vin
5 Vin
6 Vin
Load Regulation Load Regulation
3.3 3.29 3.28 3.27 3.26 0
1
2
3
4
5
6
Load Current (A)
4 Vin
Texas Instruments 3Q 2005
5 Vin
6 Vin
Reference Design Cookbook for Power Management Products
TPS61030: Synchronous Boost Converter with Integrated 4.5-A Switch
14
Description The TPS6103x family of synchronous boost converters provides a power solution for one-cell lithium or two to three-cell alkaline, NiCd, or NiMH based systems. The TPS6103x is also the ideal solution for circuits that require a 3.3-V to 5.0-V conversion. The circuit below was configured to provide 5.0 V at 1000 mA with a 6.8-µH inductor and 220-µF output capacitor. The TPS6103x achieves high efficiency over the entire load current range by switching from a fixed frequency mode of operation at high loads to a power save mode at light loads. The power save mode can be disabled by connecting the SYNC pin to VDD. The design also features a low battery detection circuit configured to pull LBO low when the input voltage reaches approximately 1.8 V.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS61030
Min
Typ
Max
Unit
Input Voltage
1.8
5.5
V
Output Voltage
VIN
5.5
V
Output Current
1000
Output Ripple Voltage Efficiency
mA
VIN = 3.3 V; IO = 1 A; Sync = VDD
25
40
mVPP
VIN = 3.3 V; IO = 50 mA; Sync = GND
5
10
mVPP
VIN = 3.3 V; IO = 300 mA
96
%
VIN = 2.4 V; IO = 300 mA
93
%
Evaluation Module - TPS61030 TPS6103x L1 SW 6.8 µH
R3
VBAT 1.8 V to 5 V Input
C1 10 µF
R1
EN
5 V Up to 1000 mA
VOUT KFF
C2 2.2 µF
C3 220 µF
FB R6
LBI
R4
R2 SYNC GND
Texas Instruments 3Q 2005
LBO
Low Battery Comparator Output
PGND
Reference Design Cookbook for Power Management Products
TPS61030: Synchronous Boost Converter with Integrated 4.5-A Switch
15
Test Results Efficiency vs. Output Current
Load Transient Response
Output Voltage in Continuous Mode
Output Voltage in Power Save Mode
Maximum Output Current vs. Input Voltage
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
TPS64201: 5-V Buck Converter - Non-Synchronous Controller
16
Description The TPS64201 is a member of the TPS6420x family of non-synchronous stepdown controllers. The TPS6420x controllers are ideal for systems powered from a 5-V or 3.3-V bus or for applications powered from a 1-cell Li-Ion battery or from a 2- to 4-cell NiCd, NiMH, or alkaline battery. These step-down controllers drive an external P-channel MOSFET allowing design flexibility. To achieve highest efficiency over a wide load current range, this controller uses a minimum on time, minimum off time control scheme and consumes only 20-µA quiescent current. The minimum on time of typically 600 ns (TPS64203) allows the use of small inductors and capacitors. When disabled, the current consumption is reduced to less than 1 µA. The TPS6420x is available in the 6-pin SOT23 (DBV) package and operates over a free air temperature range of –40 °C to 85 °C.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS64201
Min
Typ
Max
Unit
Input Voltage
4.5
5.0
5.5
V
Output Voltage
3.23
3.3
3.33
V
Load Current
0
2.25
3
A
Switching Frequency
0
450
600
kHz
20
mVPP
Output Ripple Voltage
VIN = 5 V; IO = 1 A
10
Efficiency
VIN = 5 V; IO = 1 A
93.1
%
VIN = 5 V; IO = 2.5 A
90.3
%
Reference Design Number - PMP 756 J1 4.5 to 5.5 VIN
1 2
C4 10 µF J2 GND
1 2
C5 1
R3 0.02 Ω
R4 100 kΩ U1 TPS64201
JP1
1
R7 6
SW EN 2 5 VIN GND 3 4 ISENSE FB
R6 0Ω
D1 B320A
User defined
2
Short R5 and R3 and open R6 to allow current sense using Q1’s Rds On
Texas Instruments 3Q 2005
L1
R5 2
1
Q1 Si2323
0Ω
R8 1 MΩ
10 µH
1 2
R1 165 kΩ
C1 82 pF
C2 22 µF
3.3 VOUT @ 2.75 A
C3 1 1 2
J4 GND
R2 82.5 kΩ
Reference Design Cookbook for Power Management Products
TPS64201: 5-V Buck Converter - Non-Synchronous Controller
17
Test Results Startup: The input voltage was set at 5 V with no load on the output.
Output Ripple Voltage: The image was taken with a 1-A load and a 5-V input.
Efficiency
Load Transients: The input voltage was set to 5 V. The 1-A load step shown below results in 200 mV of output ripple. Channel 1: VOUT (AC coupled) Channel 2: Load Current (1 A –> 2 A)
Efficiency vs. Load Current Using R-Box
95% 94% 93% 92% 91% 90% 89% 88% 0
0.5
1
1.5
2
2.5
3
2.5
3
Load Current (A) 5 Vin
4.5 Vin
5.5 Vin
Load Regulation Load Regulation 3.33 3.32 3.31 3.3 3.29 3.28 3.27 3.26 3.25 3.24 3.23 0
0.5
1
1.5
2
Load Current (A)
5 Vin
Texas Instruments 3Q 2005
4.5 Vin
5.5 Vin
Reference Design Cookbook for Power Management Products
TPS43000: SEPIC Converter - High Frequency Synchronous Controller
18
Description This reference design uses the TPS43000 in SEPIC topology to convert from 3.0 to 4.2 V input to 3.3 V at 3-A output. The TPS43000 in SEPIC topology is ideal for nickel, alkaline or lithium-ion battery applications. The TPS43000 operates either in a fixed-frequency mode, where the user programs the frequency, or in an automatic PFM mode. In the automatic mode, the controller goes to sleep when the inductor current goes discontinuous, and wakes up when the output voltage has fallen by 2%. The TPS43000 also has a user programmable discontinuous or continuous conduction mode.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS43000
Min
Typ
Max
Unit
Input Voltage
3.0
3.7
4.2
V
Output Voltage
3.267
3.3
3.33
V
Load Current
0
2
3
A
Switching Frequency
300
kHz
Output Ripple Voltage
VIN = 3.7 V; IO = 3 A
12
mVPP
Efficiency
VIN = 4.2 V; IO = 1 A
87
%
VIN = 4.2 V; IO = 3 A
85
%
VIN = 3.0 V; IO = 1 A
88.5
%
VIN = 3.0 V; IO = 3 A
80.5
%
Reference Design Number - PMP 169
J4
J3
1 2 3
1 2 3
U1 R1 TPS43000 1 kΩ SYNC/SD SWN 16 CSS SWP 15 14 R3 RT VP C6 127 kΩ CCM HDRV 13 1 µF 12 BUCK GND 11 PCM HDRV COMP VOUT 10 FG VIN 9 F = 300 KHz sw C11 C12 C13 1 µF 1 µF 4700 pF C14 470 pF R4 C15 R5 30.1 kΩ Open Open 1 2 3 4 5 6 7 8
R6 53.6 kΩ
Texas Instruments 3Q 2005
C1 10 µF 6.3 V
L1 6.8 µH
C2 220 µF 6.3 V
C4 10 µF 6.3 V R2 1 kΩ D2 BAT54
C3 10 µF 6.3 V
C5 Open
Q1 Si4403DY
L3 1.5 µH
1 2 3
C10 470 µF 6.3 V
7 8
GND
1 2 3 4
5 6
J1 3.0 - 4.2 VIN
3.3 VOUT J2 1 2 3 4
D1 MBRS340T3
GND D2 1RFR3706
L2 6.8 µH
C7 10 µF 6.3 V
C6 10 µF 6.3 V
+
C9 220 µF 6.3 V
+
C10 220 µF 6.3 V
+
C17 10 µF 6.3 V
R7 169 kΩ
Reference Design Cookbook for Power Management Products
TPS43000: SEPIC Converter - High Frequency Synchronous Controller
19
Test Results Turn On VIN = 3.7 VOUT; No Load Channel 1: VIN; Channel 2: VOUT
Efficiency PMP169 EFFICIENCY 3.3 VOUT 90.0 89.0 88.0 87.0 86.0 85.0 84.0 83.0 82.0 81.0 80.0 79.0 78.0 77.0 76.0 75.0 74.0 73.0 72.0 71.0 70.0 0.2
0.6 3.0 VIN
Output Ripple 3.7 VIN; IO = 3 A
1.0
1.4 1.8 Output Current 3.7 VIN
2.2
2.6
3.0
4.2 VIN
Control Loop 3.7 VIN; IO = 3 A
Phase
Gain
Transient Response Top Trace: VO at 200 mV/div; Bottom Trace: IO at 1 A/div
Texas Instruments 3Q 2005
FET Drain Voltage 4.2 VIN at 3 A
Reference Design Cookbook for Power Management Products
TPS40007: Highly Efficient, Low Input Voltage, Synchronous Buck Controller
20
Description The TPS40007 synchronous buck controller generates a 2.5-V output at up to 15 A from either a 3.3-V or 5-V input. The TPS40007 is a voltage-mode, synchronous buck PWM controller that utilizes TI’s proprietary Predictive Gate Drive™ technology to wring maximum efficiency from step-down converters. Predictive Gate Drive technology controls the delay from main switch turn-off to synchronous rectifier turn-on and also the delay from rectifier turn-off to main switch turn-on. This allows minimization of both reverse recovery and conduction losses in the MOSFET body diodes. The TPS40007 allows this design to achieve a peak efficiency greater than 94%.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS40007
Min
Input Voltage
3.0
Output Voltage
2.425
Load Current
0
Switching Frequency
Typ
Max
Unit
5.5
V
2.575
V
15
A
300
350
kHz
25
mVPP
2.500
250
Output Ripple Voltage
VIN = 5 V; IO = 15 A
20
Efficiency
VIN = 5 V; IO = 6 A
94.5
%
VIN = 3.3 V; IO = 9 A
93
%
Evaluation Module - TPS40007EVM-001 TP1 VIN
J1 1 2 3 4
+
TP8
C1 330 µF
TP2 R2 16.2 kΩ
R4
1.5 nF
5.90 kΩ
C2 330 µF
C3 22 µF
U1 TPS40007DGQ 1 2
C7
+
3 4 5
ILIM BOOT FB HDRV COMP SW SS/SD VDD GND LDRV PwrPd
10
C4 22 µF
C6 1 µF
R1 1.8 Ω
Si4866DY Q1 TP4
9 8 7 6
Si4866DY Q2
11
C11 180 pF
R5 1.8 Ω
C13 4.7 nF
C5 22 µF
L1 1 uH
R2 16.2 kΩ C12 10 nF
C8 470 µF
TP5 VOUT - 2.5 V
+
C9 470 µF
+
TP6
C10 1 µF
C14 1 µF
1 2 3 4
J2
TP7
R6 10 kΩ
C15 6.8 nF R7 698 Ω
R8 3.92 kΩ
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
TPS40007: Highly Efficient, Low Input Voltage, Synchronous Buck Controller
21
Test Results Gain and Phase Margin vs. Frequency
Output Voltage Ripple
Efficiency vs. Output Current
Transient Response
Typical Switch Node Waveform
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
TPS40055 : 15-A Buck Converter, Wide Input Range Synchronous Controller
22
Description The TPS40055 is a family of high-voltage, wide-input, synchronous, step-down converters. This family of controllers offers design flexibility with a variety of user programmable functions including soft start, UVLO, voltage feedforward, high-side current limit, and loop compensation. This design consists of two tracking, synchronized buck converters using the TPS40055 and TPS40052. The TPS40055 generates a 3.3-V/0.3-A output and the TPS40052 generates a 1.2-V/5.9-A output. The input to both converters is 12VDC. The output voltage of each converter tracks both at power up and power down. The TPS40052 converter is synchronized to run at the same frequency (phase shifted 180°) as the TPS40055 converter. Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS40055
Min
Typ
Max
Unit
Input Voltage
10.8
12
13.2
V
VOUT
1.75
1.80
1.85
V
IOUT
0
10
15
A
Switching Frequency
300
kHz
Output Ripple
35
Efficiency
IOUT = 6 A
mVPP
92
%
Evaluation Module - TPS40055EVM-001 TP1 J1 (+) (+) (–) (–)
1 2 3 4
TP2 R4 243 kΩ D1 BAS16
R6 71.5 kΩ C7 100 pF
C1 470 pF R2 165 kΩ
R9 16.2 k Ω
U1 TPS40055PWP 1 16 ILIM KFF C2 0.1 µF 15 2 VIN RT 3 BP5 BOOST 14 R1 1 kΩ 4 13 SYNC HDRV 12 5 SGND SW C3 2.2 nF 6 11 BP10 10 SS 7 LDRV VFB C5 8 COMP PGND 9 R5 PwrPd 10 kΩ 5.6 nF 17
TP4 R11 0Ω
HAT2168H Q1 C12 22 µF
0Ω
C8 0.1 µF
HAT2167H Q2 D2 30BQ040
C9 1 µF
TP9
C13 4.7 nF C15 47 µF
VOUT = 1.8 V
C16 470 µF
+
C17 470 µF
4 3 2 1
+
C18 0.1 µF
J1 (+) (+) (–) (–)
TP8
TP5
TP10
R7 8.66 kΩ
Texas Instruments 3Q 2005
TP7 L1 1.7 µH
C10 0.1 µF
C4 470 pF
R3 5.49 kΩ
C14 22 µF
C6 4.7 nF
R8 226 Ω
TP3
R12 20 Ω
TP6
C11 0.1 µF
Reference Design Cookbook for Power Management Products
TPS40055 : 15-A Buck Converter, Wide Input Range Synchronous Controller
23
Test Results Output Voltage Ripple
Efficiency vs. Load
94.00 I OUT = 15 A 92.00 90.00 88.00 Eff (%)
86.00 84.00
V RIPPLE (10 mV/div)
82.00 80.00 78.00 0
2
4
6
8
10
12
14
16
IOUT - Output Current - A t − Time − 1 µs/div
Power Dissipation vs. Load
Transient Response
7 V OUT = 50 mV/div 6
PDISS - Power Dissipation - W
5 4 3 2 1 I OUT 5 A/div
0 0
2
4
6
8
10
12
14
16
IOUT - Output Current - A t − Time − 200 µs/div
Overall Gain and Phase vs. Frequency
160
50 Phase
140
40
120
30 20
100
10
80
0
60
−10
40
−20
20
−30
Phase - °
Gain - dB
Gain
0 100
1k
Texas Instruments 3Q 2005
10 k
100 k
Reference Design Cookbook for Power Management Products
24
UC3572 PWM: Negative Output Flyback Converter
Description The UC3572 is a negative output flyback pulse width modulator used to convert a positive 12-V input voltage to a regulated –12-V output voltage at a current up to 0.5 A. The chip is optimized for use in a single inductor negative flyback switching converter employing an external PMOS switch. The controller consists of a precision reference, an error amplifier configured for voltage mode operation, an oscillator, a PWM comparator with latching logic, and a 0.5-A peak gate driver. The UC3572 includes an undervoltage lockout circuit to insure sufficient input supply voltage is present before any switching activity can occur, and a pulse-by-pulse current limit. Output current is sensed and limited to a defined maximum value. The UVLO circuit turns the chip off when the input voltage is below the UVLO threshold. The UC3572 allows this design to achieve a peak efficiency of 83%.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: UC3572
Min
Typ
Max
Unit
Input Voltage
10.8
12
13.2
V
Output Voltage
–12.36
–12
–11.64
V
Load Current
0
0.5
A
200
230
kHz
150
mVPP
Switching Frequency
170
Output Ripple Voltage
VIN = 12 V; IO = 0.5 A
120
Efficiency
VIN = 12 V; IO = 0.5 A
83
%
VIN = 12 V; IO = 0.25 A
82
%
Reference Design Number - PMP 703 J1 10.8 V - 13.2 VIN
1
TP1
2 3
TP2
GND
C1 22 µF 16 V
4
C2 1 µF 16 V
R1 23.2 kΩ
R100 1.74 kΩ
C4 1µF
U1 UC3572D 1 EAINV 3VREF 8 2
EAOUT RAMP 7
3
CS
GND 6
VCC
OUT
4
C3 330 pF
5
freq = 200 KHz
Q1 Si2343DS TP5
TP4
J2 1
L1 8.2 µH R2
C5 0.01 µF
R3 49.9 kΩ
Texas Instruments 3Q 2005
2
-12 V @ 0.5 A GND
C7 22 µF 16 V
0.05 Ω
C8 47 pF
D1 B340LA
R4 100 kΩ
Reference Design Cookbook for Power Management Products
UC3572 PWM: Negative Output Flyback Converter
25
Test Results Turn On VIN = 12 V; 0.5-A Load Channel 1: VOUT; Channel 2: VIN
Efficiency
85%
Efficiency
80%
75%
70%
65% 0
0.1
0.2
0.3
0.4
0.5
0.6
Output Current (A)
Output Ripple VIN = 12 V; IO = 0.5 A, 0.1 V/div
Control loop VIN = 12 V; IO = 0.1 A/0.5 A Phase @ 0.1 A Phase @ 0.5 A
Gain @ 0.1 A Gain @ 0.5 A
Transient Response Top Trace: VO at 200 mV/div Bottom Trace: IO at 200 mA/div
Texas Instruments 3Q 2005
Switch Mode Waveform Voltage at TP4 (5 V/div)
Reference Design Cookbook for Power Management Products
TPS40071: Buck Converter with Predictive Gate Drive™ Technology
26
Description The TPS40071EVM-001 evaluation module (EVM) is a synchronous buck converter which utilizes Predictive Gate Drive (PGD) to maximize conversion efficiency by minimizing the body diode conduction loss. The use of the TPS40071 midrange input synchronous buck controller allows the EVM to deliver 10 A from a bus voltage ranging from 5 to 14 V. The output voltage is originally set to 1.8 V, but can also be configured to provide 1.2 V to 3.3 V at a load current up to 10 A by changing one surface mount resistor.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS40071
Min
Typ
Max
Unit
Input Voltage
4.75
5/12
14
V
VOUT
1.76
1.8
1.84
V
IOUT
0
6
10
A
Switching Frequency
300
Output Ripple
VIN = 5 V
Efficiency
VIN = 5 V
kHz 16
mVPP
94
%
Evaluation Module - TPS40071EVM-001 TP1
VIN = 5 - 12 V J1
C1 + 470 µF
R6 75 kΩ
C2 0.1µF R1 10 kΩ
C3 10nF R10
330 kΩ R5
C5
1.87 kΩ 8.2 nF
(+)
2
(–)
TP2 C7 10 pF
TP4
R9 1.4 k
Ω
R2 165 kΩ Power Good TP11
1
U1 TPS40071PWP 1 ILIM KFF 2 VDD RT 3 BOOST BPS 4 HDRV SYNC 5 SW SGND 6 DSP SS 7 LDRV VFB 8 COMP PGND PwrPd
2
C12 22 µF
R11 0 Ω 16 15 14 13 12 11 10 9
Q2 C9 1 µF
C8 0.1 µF
TP7
TP9 VOUT = 1.8 V
L1 1.6 µH
2
17
1
C14 22 µF
Q1
D1 BAT54 C10 0.1 µF R4 0Ω
C13 2.2 nF
C16 47 µF C15 47 µF
C17 47 µF
(+) 2
(–)
1
J1 C18 0.1 µF
TP8
TP5
C4 470 pF R7 25.5 kΩ
R12
TP10
20 Ω R3 16.2 kΩ
Texas Instruments 3Q 2005
C8 8.2 nF
R8 100 Ω
TP3
TP6
C11 0.1 µF
Reference Design Cookbook for Power Management Products
TPS40071: Buck Converter with Predictive Gate Drive™ Technology
27
Test Results Transient Response
Efficiency with VOUT = 1.2 V Efficiency with Vout = 1.2 V 94 92 90
Eff (%)
88 86 84 82 80 78 0
5
Iout (A)
10
Vout = 1.8 V
Vout = 1.2 V
15 Vout = 3.3 V
Loop Gain VOUT = 5 V
Efficiency with VOUT = 1.8 V
Vin = 5 V
Efficiency with Vout = 1.8 V
50
210
94
40
180
92
30
150
90
20
120
10
90
0
60
Gain (dB)
96
88 86 84
30
-10
82 0
5
Iout (A)
10
10
100
1000 Frequency (Hz)
Vin = 5 V
Vin = 8 V
Vin = 12 V
0
-20
15
Gain (dB)
10000
100000
Phase (deg)
Phase Frequency Response VOUT = 12 V
Efficiency with VOUT = 3.3 V
Vin = 12 V Efficiency with Vout = 3.3 V
50
210
40
180
30
150
20
120
10
90
0
60
98 97 96 Gain (dB)
Eff (%)
95 94 93 92
-10
30
91 -20
90 0
5
10
15
0 10
100
1000 Frequency (Hz)
Iout (A) Vin = 12 V
Texas Instruments 3Q 2005
Vin = 8 V
Vin = 5 V
Gain
10000
100000
Phase
Reference Design Cookbook for Power Management Products
TPS51020: Dual Output Buck Converter - Synchronous Dual, DDR Selectable Controller
28
Description
Web Links Reference Designs:
This reference design uses the TPS51020 in a dual synchronous buck application that provides output voltages of 5 V/14 A and 3.3 V/10 A from a wide 9-V to 18-V input. The TPS51020 utilizes feed-forward voltage mode control to attain high efficiency without sacrificing line response. Each converter runs 180 degrees out of phase with respect to the other, effectively reducing the input capacitor requirement. Other features of the TPS51020 are adjustable short circuit protection, selectable Autoskip operation for improved light load efficiency, selectable DDR tracking option, and a built-in 5-V bias regulator.
Specifications Parameter
Test Conditions
http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS51020
Min
Typ
Max
Unit
9
12
18
V
Output Voltage 1
4.85
5.00
5.15
V
Output Voltage 2
3.25
3.35
3.45
V
Load Current 1
0
14
A
Load Current 2
0
10
A
270
311
kHz
Input Voltage
Switching Frequency
229
Output Ripple Voltage 1
VIN = 12 V; IO = 14 A
25
50
mVPP
Output Ripple Voltage 2
VIN = 12 V; IO = 10 A
20
33
mVPP
Efficiency 1
VIN = 12 V; IO = 6 A
95
%
Efficiency 2
VIN = 12 V; IO = 6 A
93
%
Reference Design Number - PMP 839 C1 1000 pF
TP1
R2 100 kΩ R3 20.5 kΩ VOUT1
R5 51.1 Ω
J2 VREG5 SKIP GND VIN DDR GND J4 ENBL1 GND GND ENBL2 J5 VOUT2 V02 GND
R1 2 kΩ
1 2 3 4 5 6 1 2 3 4
VIN
R10 100 kΩ
1 2 3
1 2 C18 3 4 0.01 µF R27 5 VOUT1 0Ω 6 7 C22 8 9 0.01 µF 10 11 12 TP8 13 C28 14 0.01 µF 15 R16 1 MΩ
VOUT2 TP11
R19 51.1 Ω R20
C37 100 pF
100 kΩ
C42 1000 pF
R4 10 kΩ
R8 1 MΩ
VREG5
R9 100 k Ω
C6 100 pF
R22 2 kΩ
Texas Instruments 3Q 2005
R21 34 kΩ
R18 10 kΩ C41 0.01 µF
C3 10 µF 25 V
R23 0Ω
C2 0.01 µF
D1 MBR0530 U1 TPS51020DBT INV1 VBST1 COMP1 OUT1_L SSTRT1 LL1 SKIP OUT1_D VO1 OUTGND1 DDR TRIP1 GND VIN REF_X TRIP2_SNS ENBL1 VREG5 ENBL2 REG5_IN VO2 OUTGND2 PGOOD OUT2_D SSTRT2 LL2 COMP2 OUT2_L INV2 VBST2
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
C19 22 pF
C23 22 pF
R11 12.7 kΩ R13 18.2 kΩ
Q3 Si7856DP
3 2 1
R26 0Ω
VOUT1
VREG5
J8
C36 10 µF 6.3 V
Q5 Si7856DP
VIN TRIP2 GND
C14 330 µF 6.3 V
+
+
+
L2 2.2 µH
C40 10 µF 25 V
C39 10 µF 25 V
C26 330 µF 6.3 V
+
C27 330 µF 6.3 V
C20 150 µF 20 V
C28 47 µF TP7 6.3 V
Q7 Si388DP
J1 5 V @ 14 A GND TP4
TP5
VIN
C21 0.1 µF 16 V
TP9
C15 47 µF 6.3 V
1 2 3
R24 0Ω D2 MBP0530
+
C13 330 µF 6.3 V
R12 10 Ω
1 2 3
R17 3.3 Ω
1 2
3 2 1
J7 1 2 3
TP3
VOUT1 L1 TP2 2.2 µH
Q4 Si7856DP
C17 1 µF
C35 1 µF
VOUT1 REG5_IN GND
3 2 1
3 2 1
R6 3.3 Ω
freq. = 270 KHz
1 2 3
Q2 Si7388DP
C5 10 µF 25 V
C4 10 µF 25 V
1 2
J3 9 V - 18 VIN GND TP6
J3 3.3 V @ 10 A 2 GND 1 TP18
VOUT2 R25 Open VOUT1
Note: 1. For fixed frequency operation, connect SKIP to VREG5. 2. For Sync Buck operation, connect DDR to VIN. 3. To discharge outputs at turnoff, connect VOx to VOUTx, GND V0x if discharge is not required. 4. Connect REG5_IN to 5 V output voltage. 5. Connect TRIP2 to VIN for sync buck output.
Reference Design Cookbook for Power Management Products
TPS51020: Dual Output Buck Converter - Synchronous Dual, DDR Selectable Controller
29
Test Results Efficiency
Turn on: VIN = 12 V; 0-A Loads
95.0% 94.5% 94.0%
Efficiency
93.5% 93.0% 92.5% 92.0% 91.5% 91.0% 90.5% 90.0% 0
2
4
6
8
10
12
14
16
Output Current (A) 5V
5-V Output Ripple VIN = 12 V; IO = 14 A, 20 mV/div
3.3-V Output Ripple VIN = 12 V; IO = 10 A, 20 mV/div
5-V Control Loop VIN = 12 V; IO = 14 A
5-V Transient Response Top Trace: 5 VOUT at 100 mV/div Bottom Trace: IO at 5 A/div
3.3 V
Phase
Gain
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
TPS40060: Buck Converter - Wide Input Range, Synchronous Controller
30
Description The TPS40060EVM evaluation module (EVM) is a high-efficiency, wide input range synchronous buck converter providing a fixed 3.3-V output at 4 A from a 10-V to 55-V input. The EVM is designed to start up from a supply, so no additional bias voltage is required for start-up directly from the supply. The module uses the TPS40060 with P-channel, high-side MOSFET.
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS40060
TPS40060EVM works over the full input range of the TPS40060 to produce a regulated 3.3-V output at up to 4 A of load current. Using lossless RDS(ON) current sense and a high-side, P-channel MOSFET simplifies the circuit design without sacrificing performance. The evaluation module provides test points for input voltage, output voltage, key waveforms and a 50-Ω connection point in the feedback loop for non-invasive measurements of the feedback loop along with an oscilloscope jack for easy measurements of output ripple.
Specifications Parameter
Test Conditions
Min
Input Voltage
10
Output Voltage
3.0
Load Current
0
Switching Frequency
Typ 3.3
225
250
Max
Unit
55
V
3.6
V
4
A
275
kHz
Output Ripple Voltage
VIN = 55 V; IO = 4 A
30
mVPP
Efficiency
VIN = 12 V; IO = 3 A
90
%
Evaluation Module - TPS40060EVM TP1 J1 +
C1 470 µF
C12 1.0 µF
C9 0.1 µF
R8 53.8 kΩ
TP2 R4
R18 2.0 Ω
806 kΩ DI BAS16
C2 680 µF
1
C3
2
0.1 µF
3 4 5
C4
3.3 nF
6 7
R1
8
C6 1.52 kΩ
R5
39 pF C7
15.4 kΩ C5
U1 TPS4006xPWP ILIM KFF VIN RT BOOST BP5 HDRV SYNC SW SGND BP10 SS/SD LDRV VFB PGND COMP
C11
39 µF
R12
16 15
73.2 kΩ
TYP5
14 13
TYP7
L1 7.8 µH
R11
12 11
10 Ω
10
J2 +
9
TYP6 C8 0.1 µF
3900 pF
C10 0.1 µF
C1 470 µF
C15 47 µF
C16 10 µF
C17 0.1 µF
R7 402 Ω
10 nF
R9 49.9 Ω
6.04 kΩ TYP3
Texas Instruments 3Q 2005
C13 1.0 µF
TYP4
TP8
Reference Design Cookbook for Power Management Products
TPS40060: Buck Converter - Wide Input Range, Synchronous Controller
31
Test Results Efficiency VIN = 10 to 55 V; IOUT = 0-4 A
TPS40060EVM-002 Efficiency 95.0%
Efficiency
90.0%
85.0%
80.0%
75.0%
70.0% 0
0.5
1 55 V
1.5 42 V
2 2.5 3 Load Current (Amperes) 36 V
24 V
16 V
3.5
4
4.5
10 V
Loop Response Gain and Phase Plot
Loop Response of TPS40060EVM-002 120
60
40 Gain (dB)
70 20 20 0 -30 -20
-40 1.00E+01
1.00E+02
10 V 4 A Gain
Texas Instruments 3Q 2005
1.00E+03 1.00E+04 Frequency (Hz) 55 V 4 A Gain
1.00E+05
10 V 4 A Phase
-80 1.00E+06
55 V 4 A Phase
Reference Design Cookbook for Power Management Products
TPS40130: 2-Phase Buck Converter - Synchronous Controller with Integrated Drivers
32
Description The TPS40130EVM-001 evaluation module (EVM) is a high-efficiency, two-phase synchronous buck converter providing a fixed 1.5 V output at up to 40 A from a 12-V input bus. The EVM is designed to start up from a single supply, so no additional bias voltage is required for start-up. The module uses the TPS40130 high-frequency two-phase controller.
Specifications Parameter
Test Conditions
Input Voltage Output Voltage
R14 = 8.88 kΩ
Load Current
VIN = 14 V; IO = 0 A
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: TPS40130
Min
Typ
Max
Unit
10
-
14
V
0.7
-
3.3
V
Ripple Frequency
40
A
660
kHz
Output Ripple Voltage
VIN = 14 V; IO = 40 A
30
mVPP
Efficiency
VIN = 12 V; IO = 20 A
91
%
Evaluation Module - TPS40130EVM-001 12 V_IN1 TP2 12 V_IN1+
J1
1 V5_OUT_RTN 1 V5_OUT_SNS TP8 J2 J3 1 V5_OUT–
TP6 12 V_IN1–
1 V5_OUT
1 V5_OUT_RTN TP9 1 V5_OUT+
J4
12 V_IN2 TP16 12 V_IN2+
J5
TP7 HI_DRV1 C2 22 µ
ISENSE 1
L1 0.68 µH
R5 2.2 Ω
+
+
C14 220 µ
C16 220 µ
+
+
C7 220 µ
R11 2.7 Ω
R12 5.11 Ω
D1
VNS
TP3 LOOP INJECTION TP4 A
C9 1.0 n C10 1.0 n
R8 10 kΩ
R8 39.2 kΩ 1
R7 1
C4 47 p 1
1
DIFFOUT
C5
TP5 A_GND
C13 100 n
R4 10 kΩ R2 49.9 Ω
C23 220 µ
1
Not used on PCB
2
All capacitor values given in farads unles otherwise specified
3
All resistor values given in ohms unless otherwise specified
C11
REF
1
R13 5.11 Ω
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
U1 TPS40130DBT PGND LDRV1 LDRV2 VN5 SW2 SW1 HDRV2 HDRV1 BOOT2 BOOT1 SS OVSET UVLO VOUT BP5 GSNS AGND DIFF CS2 CS1 CSRT2 CRST1 RT COMP PGOOD VREF ILIM +EA EN/SYNC FB
R20 10 Ω
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
C30 22µ
C27 1.0 n R28 2.2 Ω
Q5
TP10 SOFT START C18 1.0 µ
R16 5.11 Ω
C3 0.1 µ
R1 2.94 kΩ
+
C26 0.1 µ
R10 2.7 Ω
R3 0Ω
+
C7 0.1 µ
VNS TP1 LO_DRV1
C20 220 µ
C29 22µ
Q4 R26 4.32 kΩ
L2 0.68 µH
SS
C12 220 µ
VN2
C24 ISENSE 2 0.1 µ
C8 0.1µ
C6 1.0 n Q2
R17 5.11 Ω
R15 5.11 Ω
Q3 R9 4.32 kΩ
Q1
TP18 12 V_IN2–
TP15 HI_DRV2
VN1
C1 22 µ
J6
Q6
GND
R22 2.7 Ω
R26 2.7 Ω
R29 0Ω
SS
TP17 LO_DRV2
VN2 VNS
R30 11.5 kΩ
C21 3.3 n R27
C22 1.0 µ C25 1.0 µ
1
0Ω
R31 1.62 kΩ 1
C28 1.0 n
R23 10 kΩ VNS ENABLE
R24 10 kΩ
FB R18 2.21 kΩ R14 8.66 kΩ 1
C15 0.1 µ 1
R19 1.0 kΩ
C19 10 n 1
R21 8.25 kΩ 1
TP11 TP13 ENABLE PW_GD TP12 TP14 A_GND A_GND GND2 1
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
TPS40130: 2-Phase Buck Converter - Synchronous Controller with Integrated Drivers
33
Test Results Transient Response: 5-55 A at 3A/ms, I1V5_OUT (10 A/div), V1V5_OUT(rip) (20 mV/div), Time 10 ms/div
Efficiency HPA087A Efficiency 92 90
Efficiency
88 86 84 82 80 4
14 Vin 10 V
24 Output Current
34
Vin 12 V
Vin 14 V
Negative Transient: 5-55 A at 3A/ms, I1V5_OUT (10 A/div), V1V5_OUT(rip) (20 mV/div), Time 10 ms/div
Line Regulation VIV5_OUT = 20 A Line Regulation @ 20 A Load 1.515
Output Voltage
1.513 1.511 1.509 1.507 1.505 10
11
12
13
14
Input Voltage Line Reg
Load Regulation Load Regulation 1.515
OUtput Voltage
1.513 1.511 1.509 1.507 1.505 0
10
20
30
40
Output Current 10 V In
Texas Instruments 3Q 2005
12 V In
14 V In
Reference Design Cookbook for Power Management Products
UCC38C4X: Boost Converter - Low-Power PWM Controller
34
Description This reference design uses the UCC38C43 in boost topology to convert from +12 V to +24 V at 3.5 A. The boost topology with Schottky output diodes enables PMP781 to achieve efficiencies greater than 95%. One note of caution with this topology is that it does have short-circuit protection. A short on the output shorts through the inductor and output diode. Even if current mode control were added, this path still exists. If short circuit protection is needed, using a different topology such as flyback, SEPIC or a current limit circuit such as a fuse, polyfuse or hot swap should be considered.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: UCC38C4X
Min
Typ
Max
Unit
Input Voltage
11
12
13
V
Output Voltage
23.25
24
24.73
V
Load Current
0
2
3.5
A
Switching Frequency
100
kHz
Output Ripple Voltage
VIN = 12 V; IO = 3.5 A
200
mVPP
Efficiency
VIN = 12 V; IO = 1 A
91
%
VIN = 12 V; IO = 3 A
94
%
Reference Design Number - PMP 781 J1 VIN 12 V ±5%
MMBT2907 Q100 R2 OPEN C10 OPEN
R8 0Ω
R9 2.61 kΩ
VREF
C13 1 µF
1 2 3 4
L1 22 µH
R100 100 kΩ
U1 UCC38C43 COMP VREF VDD FB OUT CS RT/CT GND
J2
8 7 6 5
VREF
R12 1.5 kΩ
Texas Instruments 3Q 2005
R13 C17 150 kΩ 18000 pF
D1 MBRB2535CTL 1
C3 .1 µF R5 10 Ω
C100 .1 µF
C12 OPEN R6 22.6 kΩ
1 2
C18 27000 pF
C9 10 µF 16 V
2 +
C11 1 µF
C4 330 µF 35 V
+
C5 330 µF 35 V
+
C6 330 µF 35 V
+
C7 330 µF 35 V
+
C8 330 µF 35 V
24 V @ 3.5 A (max) GND
C2 2.2 µF 35 V
Q2 IRL1104S R10 10 Ω R14 100 kΩ
Reference Design Cookbook for Power Management Products
UCC38C4X: Boost Converter - Low-Power PWM Controller
35
Test Results Turn On VIN = 12 V; No Load Channel 1: VIN; Channel 2: VOUT
Efficiency PMP781 EFFICIENCY 24 VOUT
95.0 94.0 93.0 92.0 91.0 90.0 89.0 88.0 87.0 86.0 85.0 84.0 83.0 82.0
0.3 0.5 0.8 1.0 1.3 1.5 1.8 2.0 2.3 2.5 2.8 3.0 3.3 3.5 Output Current (Amps) 12 VIN
Output Ripple VIN = 48 V; IO = 3 A
Control Loop VIN = 12 V; IO = 3 A
Phase
Gain
Transient Response Top Trace: VO at 1 V/div; Bottom Trace: IO at 1 A/div
Texas Instruments 3Q 2005
FET Drain Voltage
Reference Design Cookbook for Power Management Products
UCC3809: Isolated Flyback Converter - Primary Side Controller
36
Description This reference design uses the UCC3809, a current mode controlled synchronous flyback converter that can deliver 5 A of continuous output current at 3.3 V from an input range of 36 to 75 VDC. The UCC3809 provides all necessary functions for the control of isolated off line and DC/DC power converters. This design results in a highly efficient, small, cost-effective solution for low-power isolated applications. Peak efficiency using the UCC3809 and synchronous rectification are greater than 88%.
Specifications Parameter
Test Conditions
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: UCC3809
Min
Typ
Max
Unit
Input Voltage
36
48
75
V
Output Voltage
3.0
3.3
3.6
V
Load Current
0
5
A
Switching Frequency
100
kHz
Output Ripple Voltage
VIN = 48 V; IO = 5 A
50
mVPP
Efficiency
VIN = 48 V; IO = 5 A
85
%
Reference Design Number - PMP 665 C1 2200 pF 2 kV
2 3
C3 0.47 µF 100 V
3 1
C3 4 0.47 µF 2 100 V
+
C4 R1 33 µF 100 V 100 kΩ 0.25 W
T1 G027270
C5 0.1 µF 100 V
3
R3 44.2 kΩ 0.25 W
D2 MURS120T3
ON/OFF RTN
1 2
R22 4.12 kΩ
C25 220 pF
U1 UCC3809D-2 1 8 REF 7 2 FB SS VDD 6 3 RT1 OUT 4 RT2 GND 5 C18 Q4 MMBT3904 0.01 µF
R21 1 kΩ
R8 11.3 kΩ
R18 3.01 kΩ
Texas Instruments 3Q 2005
R12 C18 7.50 kΩ 0.1 µF
Q1 MMBT3904
D3 6.8 V
VSB C8 0.1 µF
Q3 Si4848DY
Q2 Si4848DY
3 2 1
R23 10 kΩ
C23 0.047 µF R20 0Ω
C11 22 µF 6.3 V
C12 22 µF 6.3 V
C13 + C14 22 µF 330 µF 6.3 V 6.3 V
+
C15 330 µF 6.3 V
C16 1 µF
1 2
J2 3.3 V/5 A GND
C17 2200 pF 2 kV U2 H11A817A
R17 475 Ω C26 220 pF
C6 0.1 µF
R4 0Ω
8 7 6 5
4
R13 475 Ω
Q5 MMBT3804
D4 D5 18 V 18 V
6 7
R4 10
C10 1 uF
5
R7 0.68 Ω 1W
R8 11.3 kΩ
C20 560 pF
C9 10 µF 16 V
R2 1 kΩ
2 9
D6 R5 BAS 16 20 Ω
J4
8 4
10
C7 2200 pF 2 kV
D1 BAS16
1
5 6 7 8
J1 1
1 2 3
-48 VIN _RTN -48 VIN EARTH_GND
L1 1.17 mH
4
1
3
2
R10 3.01 kΩ
C21 OPEN
R15 10 kΩ
R16 C22 30.1 kΩ 0.018 µF D7 BAS 18
C24 1 uF
VSB R11 1 kΩ R14 3.01 kΩ
U3 TL431AID 2 3 6 7
R18 30.1 kΩ
Reference Design Cookbook for Power Management Products
UCC3809: Isolated Flyback Converter - Primary Side Controller
37
Test Results Turn On VIN = 48 V; No Load
Efficiency
PMP665 Efficiency
100.0%
90.0% 80.0%
70.0% 0.05
1.00
2.00
36 VIN
Output Ripple VIN = 48 V; IO = 5 A
3.00 Iout, A
48 VIN
4.00
5.00
6.00
60 VIN
Control Loop VIN = 5 V; IO = 15 A
Phase
Gain
Transient Response Top Trace: VO at 100 mV/div; Bottom Trace: IO at 2 A/div
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
UCC3813: Triple-Output Flyback, Low-Power Economy PWM Controller
38
Description The UCC3813-5 controller is used in a continuous flyback converter to generate three output voltages. The outputs are +12 V/1 A, +5 V/0.5 A and –5 V/0.3 A. The input voltage ranges from 5 V to 24 V. The UCC3813 family of high-speed, low-power integrated circuits contain all of the control and drive components required for off line and DC/DC fixed-frequency current mode switching power supplies with minimal parts count.
Specifications Parameter
Min
Input Voltage
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: UCC3813
Typ
+5
VOUT1
+11.40
IOUT1
0.25
VOUT2
+4.75
IOUT2
0
VOUT3
–4.75
IOUT3
0
+12 +5.00 –5.00
Switching Frequency
Max
Units
+24
V
+12.6
V
1.00
A
+5.25
V
0.50
A
–5.25
V
0.30
A
130
kHz
Reference Design Number - PMP 469 U3 UA78M05CKTP J4 1 +5 V @ 0.5 A IN OUT 2 GND GND + R11 C13 5.1 kΩ 150 µF
D2
VIN GND
VIN
J1 5 V to 24 V C17 47 µF
+
C18 10 µF
C19 10 µF
C20 10 µF
R12 100 kΩ R13 6.49 kΩ
C21 10 µF
C22 0.1 µF D2 MURS120 R14
R18 10 kΩ C30 5600 pF
R20 2 kΩ TP5
R21 2 kΩ
Q4 SUD30N04-10
4.7 Ω
C34 220 pF
TP6
U5 UCC3813-5 1 COMP REF 2 FB VCC 3 CS OUT 4 RC GND 138 kHz C36 330 pF
8 7 6 5
R19 C34 .22 µF
C32 .1 µF
+
+
+
D5
C25 150 µF COMP IN OUT U4 UA79MB50KTP L2
+
C28 100 µF
+
C29 100 µF
+
C26 100 µF
+
J5 1 2
1 2
2 µH
MURD320 C27 100 µF
R15 0.0112 Ω
R17 11.8 k
R18 C31 5.62 kΩ .068 µF
T1 8 MURS120 C14 + C15 + C16 8T 150 µF 150 µF 150 µF 1 9 8T 3T + C23 C24 4 10 150 µF 150 µF D4 7 2 3T 13T 5 6 MURS120 3.15 µH
+
-5 V @ 0.3 A GND J6
+12 V @ 1 A GND
D6
10 Ω BAS16 C33 22 µF
TP7
R22
R23
10 kΩ
0Ω
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
UCC3813: Triple-Output Flyback, Low-Power Economy PWM Controller
39
Test Results Regulation and Efficiency VIN IIN (V) (A)
VOUT1 (V)
IOUT1 (A)
VOUT2 (V)
IOUT2 (A)
VOUT3 (V)
IOUT3 (A)
Efficiency (%)
5.00
4.46
+11.93
1.008
+4.94
0.400
–5.03
0.400
71.8
12.01
1.761
+11.94
1.008
+4.94
0.400
–5.03
0.400
75.7
24.03
0.899
+11.94
1.008
+4.94
0.400
–5.03
0.400
74.1
4.97
2.133
+11.94
0.500
+4.97
0.200
–5.03
0.200
75.2
12.00
0.876
+11.95
0.500
+4.97
0.200
–5.03
0.200
75.9
24.04
0.449
+11.95
0.500
+4.97
0.200
–5.03
0.200
73.9
5.00
1.069
+11.94
0.250
+4.98
0.100
–5.03
0.100
74.4
12.04
0.446
+11.95
0.250
+4.98
0.100
–5.03
0.100
74.1
24.02
0.232
+11.95
0.250
+4.98
0.100
–5.03
0.100
71.4
Calculated Loop Gain Loop Gain (T), Vin = 4.75V 100
50 20 ⋅ log
( T (f i ) ) 0
50 10
100
3 1 . 10
4 1 . 10
5 1 . 10
4 1 . 10
5 1 . 10
fi
Loop Gain Phase Margin, Vin = 4.75V 100
0 360 2⋅π
⋅ arg
(T (f i )) 100
200 10
100
3 1 . 10 fi
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
UCC2580 PWM: Active-Clamp Forward Converter
40
Description
Web Links Reference Designs:
This reference design uses the UCC2580 in an active-clamp forward converter that can deliver up to 30 A of continuous current at 3.3 V from an input range of –36 V to –72 V. The active-clamp topology with self-driven secondary synchronous MOSFETs allows PMP 206 to achieve efficiencies greater than 90%. The design includes remote sense connections for point-of-load regulation.
Specifications Parameter Input Voltage Output Voltage Load Current Switching Frequency Output Ripple Voltage Efficiency
Test Conditions
http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: UCC2580
Min –36 3.2 0
Typ –48 3.3
Max –72 3.4 30
Unit V V A kHz mVpp % %
300 25 93 89
VIN = –48 V; IO = 30 A VIN = –48 V; IO = 10 A VIN = –48 V; IO = 30 A
Reference Design Number - PMP 206 D100 R12 49.9 kΩ
BIAS
Q3 FZT655
D2
D3 12-V
MMSD914
C8 10 µF
R101 1 kΩ
BAT54 C100 1 µF
L1 PA0373 1
11
6
7
SENSE-
VIN+ C2
2
9
4
8
0.1 µF
3 3
3 2 1
D9 BAT54
Q1 Si7846DP
Q2 IRF6216
R100 10 kΩ
R103 0.1 Ω 1W
R2 0.1 Ω 1W
VINR8 R9 26.7 kΩ 1 2 3 4 5 6 7 8
BIAS C9 0.1 µF
200 kΩ U1 UCC2580D-1 DELAY SHDN SS LINE REF VDD EAIN OUT1 PGND EAOUT OSC1 OUT2 OSC2 CLK GND RAMP R7
BIAS C17 0.1 µF
5
1
3
Q8 HAT2099H
C104 1 µF
4
1
10 kΩ
R26
R29 3.48 kΩ
Texas Instruments 3Q 2005
Q9 HAT2099H
4
3
2
VOUT+
R28 499 Ω
R20 10 Ω
TP5
SENSE+ R24 23.7 kΩ
10 kΩ C103 100 pF R6 45.3 kΩ
R27 1 kΩ
C19 1000 pF
TP7
4
1
3
2
C106 4700 pF 2 kV
R23 750 Ω C13 1000 pF
U2 TLV431ACDBV5
BIAS2
C3 100 pF
C15 33 pF
C14 3300 pF
R22 49.9 kΩ
R37 30.1 kΩ SENSE–
R35
Q4 MMBT3904
VOUT-
1
BIAS2
U7 H11A817A
BAS16
100 kΩ D4 R30 10 kΩ
1
5
U5 H11A817B
2
2
2
TP4 R25
C4 330 pF
U4 TL331DBV 4
ON/OFF
R102 10 Ω
100 kΩ
3
R41 4.99 kΩ R21
C16 100 pF
REF
R5 4.02 kΩ
3
C102 10 µF 6.3 V
Q6 HAT2099H
4
1
1
C6 0.1 µF C5 1 µF
C11 + C12 + C1 180 µF 180 µF 180 µF 6.3 V 6.3 V 6.3 V
REF
R3 1 kΩ
R16 34.8 kΩ
16 15 14 13 12 11 10 9
2
5
R4
150 kΩ
2
4
16 V
R31 9.53 kΩ
VOUT+
5
Q5 HAT2099H
4
8 7 6 5
C7 1 µF
VOUT = 3.3 V @ 30 A
+ 5
200 V C24 1 µF 100 V
C23 1 µF 100 V
C22 1 µF 100 V
REF
BIAS2
C101 10 µF
T1 PA0369
–36 V to –72 V Input
R32 150 kΩ
Q100 MMBT3904
D101 5.1-V
R38 10 kΩ
VOUT+
C105 1 µF
R19 10 Ω
R33 10 kΩ
499 Ω U6 TLV431ACDBV5
C18 100 pF
R34 4.53 kΩ
SENSE–
Reference Design Cookbook for Power Management Products
UCC2580 PWM: Active-Clamp Forward Converter
41
Test Results Efficiency
Efficiency - %
Turn On VIN = –48 V; No Load Top Trace: Enable at 5 V/div; Bottom Trace: Vout at 2 V/div
100 95 90 85 80 75 70 65 60 55 50 45 40 0
5
10
15
20
25
30
IOUT - Amps
48.0 V
36.0 V
Output Ripple VIN = –48 V; IO = 30 A
72.0 V
Control Loop VIN = –48 V; IO = 30 A
Phase
Gain
Transient Response Top Trace: VO at 50 mV/div; Bottom Trace: IO at 10 A/div
SOA for –48-V Input
PMP206 Safe Operating Area 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 0.0
5.0 Nat conv
Texas Instruments 3Q 2005
10.0 100LFM
15.0
20.0 200LFM
25.0
30.0
300LFM
Reference Design Cookbook for Power Management Products
42
bq24103: Synchronous, Switch-Mode Lithium-Ion Charger
Description The bq241xx is a synchronous, switch-mode battery charger with internal power FETs capable of supplying up to 2 A of charge current. It enables higher charge current while reducing the amount of heat generated, making it ideal for use in systems that incorporate one-, two- and three-series cell lithium-ion or lithium-polymer battery packs. Applications include portable DVD and media players, smart handhelds, medical, industrial and other portable equipment. The integrated PWM controller operates at a fixed frequency of 1.1 MHz, allowing the use of a small inductor and output capacitor. The IC delivers high-accuracy current and voltage regulation for precise battery charging, overvoltage protection, multiple charge status outputs for charge progress indication and charge termination. Charge termination is based on a minimum current level. A programmable charge timer provides a safety backup for termination. Other versions of the IC also allow the portable system’s microcontroller to control the battery charging profile and termination with digital inputs to the IC.
Specifications Parameter
Min
Input Voltage
Web Links Reference Designs: http://www.ti.com/powerreferencedesigns
Datasheets, User’s Guides, Samples: www.ti.com
Part Number Search: bq24103
Typ
4.35
Charge Current Sync PWM
Max
Unit
16
V
2
A
1.1
MHz
Evaluation Module - bq24103EVM bq24103 VIN
L1 10 µH
IN
OUT
IN
OUT
R1 0.1 Ω/0.5 W Pack+
C1 0.1 µF
VCC
PGND
CE
PGND
PG
SNS
STAT1
BAT
C2 10 µF
C3 0.1 µF
R9 STAT2
Temp
VIN
CELLS VTSB
10 kΩ TTC C4 0.1 µF
TS
VTSB
ISET1
VSS
ISET2
R4 5.1 kΩ R2 7.5 kΩ
C5 0.1 µF
R3 7.5 kΩ
VIN R6 1.5 kΩ Done
Texas Instruments 3Q 2005
Pack–
VIN R7 1.5 kΩ Charge
R5 0Ω
VIN R8 1.5 kΩ Adapter Present
•
VIN = 12 V
•
Icharge = 1.33 A, Iprecharge = 0.13 A
•
Typical Effciency: 91%
•
Surface Temp (Assume Amb ient Temp 25 °C): 50~55 °C at 91% Efficiency
Reference Design Cookbook for Power Management Products
bq24103: Synchronous, Switch-Mode Lithium-Ion Charger
43
Test Results Efficiency vs. Output Charge Current
Efficiency vs. Output Charge Current
IO(CHARGE) = Output Charge Current - A
IO(CHARGE) = Output Charge Current - A
QFN Package
Texas Instruments 3Q 2005
Reference Design Cookbook for Power Management Products
Technology for Innovators
TM
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