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Table of Contents
User’s Guide
TPS543B20 SWIFT™ Step-Down Converter Evaluation
Module User's Guide
ABSTRACT
This user's guide describes the characteristics, operation, and use of the TPS543B20EVM-054 evaluation
module (EVM). The user's guide includes test information, descriptions, and results. A complete schematic
diagram, printed-circuit board layouts, and bill of materials are also included in this document. Throughout this
user's guide, the abbreviations EVM, TPS543B20EVM-054, and the term evaluation module are synonymous
with the TPS543B20EVM-054, unless otherwise noted.
Table of Contents
1 Introduction.............................................................................................................................................................................3
1.1 Before You Begin............................................................................................................................................................... 3
2 Description.............................................................................................................................................................................. 3
2.1 Typical End-User Applications........................................................................................................................................... 3
2.2 EVM Features.................................................................................................................................................................... 3
3 EVM Electrical Performance Specifications.........................................................................................................................4
4 Schematic................................................................................................................................................................................5
5 Test Equipment....................................................................................................................................................................... 6
6 BSR054EVM............................................................................................................................................................................ 7
7 List of Test Points, Jumpers, and Switch............................................................................................................................. 8
8 Test Procedure........................................................................................................................................................................ 9
8.1 Line and Load Regulation Measurement Procedure..........................................................................................................9
8.2 Efficiency............................................................................................................................................................................9
8.3 Equipment Shutdown....................................................................................................................................................... 10
9 Performance Data and Typical Characteristic Curves...................................................................................................... 10
9.1 Efficiency..........................................................................................................................................................................10
9.2 Power Loss...................................................................................................................................................................... 10
9.3 Load Regulation............................................................................................................................................................... 11
9.4 Transient Response......................................................................................................................................................... 11
9.5 Output Ripple................................................................................................................................................................... 12
9.6 Control On........................................................................................................................................................................13
9.7 Control On and Off........................................................................................................................................................... 14
9.8 Thermal Image................................................................................................................................................................. 14
10 EVM Assembly Drawing and PCB Layout........................................................................................................................ 15
11 List of Materials...................................................................................................................................................................25
12 Revision History................................................................................................................................................................. 27
List of Figures
Figure 4-1. BSR054EVM Schematic........................................................................................................................................... 5
Figure 6-1. BSR054EVM Overview............................................................................................................................................. 7
Figure 6-2. Tip and Barrel Measurement..................................................................................................................................... 7
Figure 9-1. Efficiency of 0.9-V Output vs Load.......................................................................................................................... 10
Figure 9-2. Power Loss of 0.9-V Output vs Load.......................................................................................................................10
Figure 9-3. Load Regulation of 0.9-V Output............................................................................................................................. 11
Figure 9-4. Transient Response of 0.9-V Output at 12-VIN, Transient is 10 A to 20 A to 10 A, at 40 A/µs................................ 11
Figure 9-5. Output Ripple and SW Node of 0.9-V Output at 12-VIN, 20-A Output..................................................................... 12
Figure 9-6. Output Ripple and SW Node of 0.9-V Output at 12-VIN, 0-A Output....................................................................... 12
Figure 9-7. Start up from Enable, 0.9-V Output at 12-VIN, 50-mA Output................................................................................. 13
Figure 9-8. Start up from Enable, 0.9-V Output at 12-VIN, 20-A Output.................................................................................... 13
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Trademarks
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Figure 9-9. Output Voltage Start-up and Shutdown, 0.9-V Output at 12-VIN, 0.5-A Output.......................................................14
Figure 9-10. Thermal Image at 0.9-V Output at 12 VIN, 25-A Output, at 25°C Ambient............................................................ 14
Figure 10-1. BSR054EVM Top Layer Assembly Drawing (Top View)........................................................................................15
Figure 10-2. BSR054EVM Top Solder Mask (Top View)............................................................................................................16
Figure 10-3. BSR054EVM Top Layer (Top View).......................................................................................................................17
Figure 10-4. BSR054EVM Inner Layer 1 (Top View)................................................................................................................. 18
Figure 10-5. BSR054EVM Inner Layer 2 (Top View)................................................................................................................. 19
Figure 10-6. BSR054EVM Inner Layer 3 (Top View)................................................................................................................. 20
Figure 10-7. BSR054EVM Inner Layer 4 (Top View)................................................................................................................. 21
Figure 10-8. BSR054EVM Bottom Layer (Top View)................................................................................................................. 22
Figure 10-9. BSR054EVM Bottom Solder Mask (Top View)...................................................................................................... 23
Figure 10-10. BSR054EVM Bottom Overlay Layer (Top View)..................................................................................................24
List of Tables
Table 3-1. BSR054EVM Electrical Performance Specifications.................................................................................................. 4
Table 7-1. Test Point Functions....................................................................................................................................................8
Table 8-1. List of Test Points for Line and Load Measurements.................................................................................................. 9
Table 8-2. List of Test Points for Efficiency Measurements..........................................................................................................9
Table 11-1. BSR054EVM List of Materials................................................................................................................................. 25
Trademarks
All trademarks are the property of their respective owners.
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Introduction
1 Introduction
The BSR054EVM evaluation module uses the TPS543B20EVM-054 device. The TPS543B20EVM-054 is a
highly integrated synchronous buck converter that is designed for up to 25-A current output.
1.1 Before You Begin
The following warnings and cautions are noted for the safety of anyone using or working close to the
TPS543B20EVM-054. Observe all safety precautions.
Warning
The TPS543B20EVM-054 circuit module can become hot during operation due
to dissipation of heat. Avoid contact with the board. Follow all applicable safety
procedures applicable to your laboratory.
Caution
Do not leave the EVM powered when unattended.
!
WARNING
The circuit module has signal traces, components, and component leads on the bottom of the board.
This can result in exposed voltages, hot surfaces or sharp edges. Do not reach under the board
during operation.
CAUTION
The circuit module can be damaged by over temperature. To avoid damage, monitor the temperature
during evaluation and provide cooling, as needed, for the system environment.
CAUTION
Some power supplies can be damaged by application of external voltages. If using more than
one power supply, check the equipment requirements and use blocking diodes or other isolation
techniques, as needed, to prevent damage to the equipment.
CAUTION
The communication interface is not isolated on the EVM. Be sure no ground potential exists between
the computer and the EVM. Also be aware that the computer is referenced to the Battery- potential
of the EVM.
2 Description
The BSR054EVM is designed as a single output DC-DC converter that demonstrates the TPS543B20EVM-054
in a typical low-voltage application while providing a number of test points to evaluate the performance. It uses a
nominal 12-V input bus to produce a regulated 0.9-V output at up to 25-A load current.
2.1 Typical End-User Applications
•
•
•
•
•
Enterprise storage, SSD, NAS
Wireless and wired communication infrastructure
Industrial PCs, automation, ATE, PLC, video surveillance
Enterprise server, switches, routers
ASIC, SoC, FPGA, DSP core, and I/O rails
2.2 EVM Features
•
Regulated 0.9-V output up to 25-A, steady-state output current
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EVM Electrical Performance Specifications
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Convenient test points for probing critical waveforms
3 EVM Electrical Performance Specifications
Table 3-1. BSR054EVM Electrical Performance Specifications
Parameter
Test Conditions
Min
Typ
Max
5
12
19
Units
Input Characteristics
Voltage range
VIN tied to VDD
V
Maximum input current
VIN = 12 V, IO = 25 A, VOUT = 0.9 V, FSW = 500 kHz
3.0
A
No load input current
VIN = 12 V, IO = 0 A
40
mA
0.9
V
Output Characteristics
VOUT
Output voltage
Output current = 0 A to 25 A
IOUT
Output load current
IOUT(min) to IOUT(max)
Output voltage regulation
VOUT
Output voltage ripple
VOUT
Output overcurrent
0
25
Line regulation: input voltage = 5 V to 19 V
0.5%
Load regulation: output current = 0 A to IOUT(max)
0.5%
VIN = 12 V, IOUT = 25 A
A
10
mVPP
30
A
500
kHz
Systems Characteristics
VOUT
4
Switching frequency
FSW
Peak efficiency
VIN = 5 V, IO = 7 A, FSW = 500 kHz
Operating temperature
Toper
93.7%
0
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Schematic
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4 Schematic
J1
4
3
2
1
TP7
TP1
TP4
TP5
J3
C4
C5
22uF
TP14
R11
DNP
0
R6
DNP
0
C1
22uF
BP_5V
Input: 4.5V to 15V
330uF
GND
GND
TP8
GND
R4
1.00
1
2
BP_5V R16
100k
SYNC
TP18
DNPC6
22uF
VIN
C2
22uF
C20
1uF
GND
C7
22uF
C3
22uF
TP6
C8
0.1uF
R10
DNP
0
R7
R8
51.1k 63.4k
GND
R1
0
C25
0.01uF
R14
40.2k
R15
DNP
8.66k
TP19
SYNC
TP20
TP21
32
31
21
22
23
24
25
26
33
36
34
30
35
37
38
39
3
4
5
6
NC
NC
U1
BOOT
RSP
RAMP
SW
SW
SW
SW
SW
VDD
RSN
PVIN
PVIN
PVIN
PVIN
PVIN
EN
TP16
PAD
PGND
PGND
PGND
PGND
PGND
PGND
PGND
PGND
GND
AGND
BP
PGD
VSEL
ILIM
SYNC
SS
RT
MODE
NC
NC
NC
NC
TP15
TPS543B20RVFT
TP22
GND
7
8
9
10
11
12
40
2
1
28
27
29
41
13
14
15
16
17
18
19
20
R17
0
C18
DNP
22pF
C21
4.7uF
TP24
BP_5V
TP17
0.1uF
C23
R2
187k
C19
DNP
22pF
TP9
R3
DNP
0
R5
DNP
0
TP23
GND
C22
DNP
22pF
R12
0
L1
TP11
470nH
C24
1000pF
R18
3.0
GND
R9
DNP
0
R13
0
GND
TP2
VOUT
C12
0.1uF
DNPC15
100uF
TP12
C9
100uF
DNPC16
100uF
TP13
DNPC10
100uF
C17
100uF
C11
100uF
330uF
C13
330uF
C14
GND
TP3
J2
1V@35A DC
1
2
3
4
TP10
Figure 4-1. BSR054EVM Schematic
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Test Equipment
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5 Test Equipment
Voltage Source: The input voltage source VIN must be a 0-V to 20-V variable DC source capable of supplying
at least 10 ADC. Also, the output impedance of the external voltage source must be much less than 100 kΩ.
Multimeters: It is recommended to use two separate multimeters Figure 6-1. One meter is used to measure VIN
and one to measure VOUT.
Output Load: A variable electronic load is recommended for testing Figure 6-1. It must be capable of 25 A at
voltages as low as 0.6 V.
Oscilloscope: An oscilloscope is recommended for measuring output noise and ripple. Output ripple must be
measured using a tip-and-barrel method or better as shown in Figure 6-2. The scope must be adjusted to
20-MHz bandwidth, AC coupling at 50 mV/division, and must be set to 1-µs/division.
Fan: During prolonged operation at high loads, it may be necessary to provide forced air cooling with a small fan
aimed at the EVM. Temperature of the devices on the EVM must be maintained below 105°C.
Recommended Wire Gauge: The voltage drop in the load wires must be kept as low as possible in order to
keep the working voltage at the load within its operating range. Use the AWG 14 wire (2 wires parallel for VOUT
positive and 2 wires parallel for the VOUT negative) of no more than 1.98 feet between the EVM and the load.
This recommended wire gauge and length should achieve a voltage drop of no more than 0.2 V at the maximum
25-A load.
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BSR054EVM
6 BSR054EVM
Figure 6-1. BSR054EVM Overview
Spacer
Metal Ground
Barrel
Probe
Tip
Figure 6-2. Tip and Barrel Measurement
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List of Test Points, Jumpers, and Switch
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7 List of Test Points, Jumpers, and Switch
Table 7-1. Test Point Functions
8
Item
Type
Name
Description
TP23
T-H loop
SW
TP11
T-H loop
CH-A
Measure loop stability
TP12
T-H loop
CH-B
Measure loop stability
TP3
T-H loop
LocS+
Sense VOUT + locally across C11. Use for efficiency and ripple measurements
TP10
T-H loop
LocS-
Sense VOUT– locally across C11. Use for efficiency and ripple measurements
TP1
T-H loop
PVIN
Sense VIN + across C8
TP4
T-H loop
PGND
Sense VIN – across C8
TP6
T-H loop
VDD
Power supply Switch node
Supplies the internal circuitry
TP9
T-H loop
BP
LDO output
TP14
T-H loop
PG
Power good
TP7, TP15, TP16,
TP17
T-H loop
PGND
TP19, TP20, TP21,
TP22
T-H loop
TP18
T-H loop
SYNC
JP3
2-pin jumper
EN
Common GND
Not used
Synchronize with external switching frequency
Enable or disable TPS543B20EVM-054 IC
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Test Procedure
8 Test Procedure
8.1 Line and Load Regulation Measurement Procedure
1.
2.
3.
4.
5.
6.
7.
Connect VOUT to J2 and VOUT_GND to J2 Figure 6-1.
Ensure that the electronic load is set to draw 0 ADC.
Ensure the jumper provided on the EVM shorts on J3 before VIN is applied
Connect VIN to J1 and VIN_GND to J1 Figure 6-1.
Increase VIN from 0 V to 12 V using the digital multimeter to measure input voltage.
Remove the jumper on J3 to enable the controller.
Use the other digital multimeter or the oscilloscope to measure output voltage VOUT at TP3 and TP10.
Table 8-1. List of Test Points for Line and Load Measurements
Test Point
Node Name
Description
TP3
LocS+
Sense VOUT + locally across C11. Use for efficiency and ripple measurements
TP10
LocS-
Sense VOUT - locally across C11. Use for efficiency and ripple measurements
TP1
PVIN
Sense VIN + across C8
TP4
PGND
Sense VIN - across C8
8. Vary the load from 0 ADC to maximum rated output 25 ADC. VOUT must remain in regulation as defined in
Table 3-1.
9. Vary VIN from 5 V to 19 V. VOUT must remain in regulation as defined in Table 3-1.
10. Decrease the load to 0 A.
11. Put the jumper back on JP3 to disable the converter.
12. Decrease VIN to 0 V or turn off the supply.
8.2 Efficiency
To measure the efficiency of the power train on the EVM, it is important to measure the voltages at the correct
location. This is necessary because otherwise the measurements will include losses in efficiency that are not
related to the power train itself. Losses incurred by the voltage drop in the copper traces and in the input and
output connectors are not related to the efficiency of the power train, and they must not be included in efficiency
measurements.
Table 8-2. List of Test Points for Efficiency Measurements
Test Point
Node Name
TP3
LocS+
Sense VOUT + locally across C11. Use for efficiency and ripple measurements
Description
TP10
LocS-
Sense VOUT - locally across C11. Use for efficiency and ripple measurements
TP1
PVIN
Sense VIN + across C8
TP4
PGND
Sense VIN - across C8
Input current can be measured at any point in the input wires, and output current can be measured anywhere
in the output wires of the output being measured. Using these measurement points result in efficiency
measurements that do not include losses due to the connectors and PCB traces.
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Test Procedure
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8.3 Equipment Shutdown
1.
2.
3.
4.
Reduce the load current to 0 A.
Reduce input voltage to 0 V.
Shut down the external fan if in use.
Shut down equipment.
9 Performance Data and Typical Characteristic Curves
Figure 9-1 through Figure 9-10 present typical performance curves for the BSR054EVM.
SPACE
9.1 Efficiency
100%
Efficiency ( )
90%
80%
5.0 Vin
9.0 Vin
12.0 Vin
16.0 Vin
18.0 Vin
70%
0
5
10
15
20
Iout (A)
25
D004
Figure 9-1. Efficiency of 0.9-V Output vs Load
9.2 Power Loss
5
5.0 Vin
9.0 Vin
12.0 Vin
16.0 Vin
18.0 Vin
4.5
Power Loss (W)
4
3.5
3
2.5
2
1.5
1
0.5
0
0
5
10
15
Iout (A)
20
25
D005
Figure 9-2. Power Loss of 0.9-V Output vs Load
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Performance Data and Typical Characteristic Curves
9.3 Load Regulation
0.91
Vout (V)
5.0 Vin
9.0 Vin
12.0 Vin
16.0 Vin
18.0 Vin
0.9
0.89
0
5
10
15
20
25
Iout (A)
D006
Figure 9-3. Load Regulation of 0.9-V Output
9.4 Transient Response
Figure 9-4. Transient Response of 0.9-V Output at 12-VIN, Transient is 10 A to 20 A to 10 A, at 40 A/µs
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Performance Data and Typical Characteristic Curves
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9.5 Output Ripple
Figure 9-5. Output Ripple and SW Node of 0.9-V Output at 12-VIN, 20-A Output
Figure 9-6. Output Ripple and SW Node of 0.9-V Output at 12-VIN, 0-A Output
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Performance Data and Typical Characteristic Curves
9.6 Control On
Figure 9-7. Start up from Enable, 0.9-V Output at 12-VIN, 50-mA Output
Figure 9-8. Start up from Enable, 0.9-V Output at 12-VIN, 20-A Output
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Performance Data and Typical Characteristic Curves
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9.7 Control On and Off
Figure 9-9. Output Voltage Start-up and Shutdown, 0.9-V Output at 12-VIN, 0.5-A Output
9.8 Thermal Image
Figure 9-10. Thermal Image at 0.9-V Output at 12 VIN, 25-A Output, at 25°C Ambient
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EVM Assembly Drawing and PCB Layout
10 EVM Assembly Drawing and PCB Layout
Figure 10-1 through Figure 10-8 show the design of the BSR054EVM printed-circuit board (PCB). The
BSR054EVM has a 2-oz. copper finish for all layers.
Spacer
Figure 10-1. BSR054EVM Top Layer Assembly Drawing (Top View)
spacer
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EVM Assembly Drawing and PCB Layout
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Figure 10-2. BSR054EVM Top Solder Mask (Top View)
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EVM Assembly Drawing and PCB Layout
Figure 10-3. BSR054EVM Top Layer (Top View)
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EVM Assembly Drawing and PCB Layout
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Figure 10-4. BSR054EVM Inner Layer 1 (Top View)
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EVM Assembly Drawing and PCB Layout
Figure 10-5. BSR054EVM Inner Layer 2 (Top View)
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EVM Assembly Drawing and PCB Layout
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Figure 10-6. BSR054EVM Inner Layer 3 (Top View)
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EVM Assembly Drawing and PCB Layout
Figure 10-7. BSR054EVM Inner Layer 4 (Top View)
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EVM Assembly Drawing and PCB Layout
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Figure 10-8. BSR054EVM Bottom Layer (Top View)
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EVM Assembly Drawing and PCB Layout
Figure 10-9. BSR054EVM Bottom Solder Mask (Top View)
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EVM Assembly Drawing and PCB Layout
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Figure 10-10. BSR054EVM Bottom Overlay Layer (Top View)
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List of Materials
11 List of Materials
The EVM components list, according to the schematic, is shown in Table 11-1.
Table 11-1. BSR054EVM List of Materials
Designator
Quantity
Value
Description
!PCB
1
C1, C2, C3, C5, C7
5
22 μF
CAP, CERM, 22 µF, 25 V, ±20%, X5R,
1206_190
C4
1
330 μF
C8
1
0.1 μF
C9, C11, C17
3
C12
Package Reference
Part Number
Alternate Part Number(1)
Manufacturer
BSR054
Any
C3216X5R1E226M160AB
TDK
CAP, AL, 330 µF, 25 V, ±20%, 0.15 Ω, SMD SMT Radial G
EEE-FC1E331P
CAP, CERM, 0.1 µF, 25 V, ±10%, X7R,
0603
0603
GRM188R71E104KA01D
100 μF
CAP, CERM, 100 µF, 6.3 V, ±20%, X5R,
1206
1206
1
0.1 μF
CAP, CERM, 0.1 µF, 10 V, ±10%, X7R,
0603
0603
C13
1
330 μF
C14
1
C20
C21
Alternate Manufacturer(1)
-
-
Panasonic
865230457008
Wurth Elektronik
MuRata
885012206071
Wurth Elektronik
GRM31CR60J107ME39L
MuRata
885012108005
C0603X104K8RACTU
Kemet
885012206020
Wurth Elektronik
CAP, Tantalum Polymer, 330 µF, 2 V, ±20%, 7343-20
0.006 Ω, 7343-20 SMD
2TPF330M6
Panasonic
EEFGX0D331R
Panasonic
330 μF
CAP, Aluminum Polymer, 330 µF, 2 V,
±20%, 3 mΩ, 7.3 × 1.8 × 4.3 mm SMD
7.3x1.8x4.3mm
EEFGX0D331R
Panasonic
1
1 μF
CAP, CERM, 1 µF, 25 V, ±10%, X5R, 0402
0402
GRM155R61E105KA12D
MuRata
1
4.7 μF
CAP, CERM, 4.7 µF, 16 V, ±10%, X5R,
0603
0603
GRM188R61C475KAAJ
MuRata
C23
1
0.1 μF
CAP, CERM, 0.1 µF, 50 V, ±10%, X7R,
0603
0603
06035C104KAT2A
AVX
885012206095
Wurth Elektronik
C24
1
1000 pF
CAP, CERM, 1000 pF, 50 V, ±10%, C0G/
NP0, 0603
0603
06035A102KAT2A
AVX
885012006062
Wurth Elektronik
C25
1
0.01 μF
CAP, CERM, 0.01 μF, 50 V, ±5%, X7R,
0402
0402
C0402C103J5RACTU
Kemet
H9, H10, H11, H12
4
Bumpon, Hemisphere, 0.44 × 0.20, Clear
Transparent Bumpon
SJ-5303 (CLEAR)
3M
J1, J2
2
Terminal Block, 5.08 mm, 4 × 1, Brass, TH
4x1 5.08 mm Terminal Block ED120/4DS
On-Shore Technology
61300211121
Wurth Elektronik
J3
1
Header, 100 mil, 2 × 1, TH
Header, 2x1, 100mil, TH
800-10-002-10-001000
Mill-Max
691242510004
Wurth Elektronik
L1
1
Inductor, Shielded Drum Core, Ferrite, 470
nH, 40.5 A, 0.000165 Ω, SMD
12.5x13mm
744309047
Wurth Elektronik
LBL1
1
Thermal Transfer Printable Labels, 0.650"
W × 0.200" H - 10,000 per roll
PCB Label 0.650"H x
0.200"W
THT-14-423-10
Brady
R1
1
0
RES, 0, 5%, 0.1 W, 0603
0603
CRCW06030000Z0EA
Vishay-Dale
R2
1
187 k
RES, 187 k, 1%, 0.063 W, 0402
0402
CRCW0402187KFKED
Vishay-Dale
R4
1
1.00
RES, 1.00, 1%, 0.1 W, 0603
0603
CRCW06031R00FKEA
Vishay-Dale
R7
1
51.1 k
RES, 51.1 k, 1%, 0.063 W, 0402
0402
CRCW040251K1FKED
Vishay-Dale
R8
1
69.8 k
RES, 69.8 k, 1%, 0.063 W, 0402
0402
CRCW040269K8FKED
Vishay-Dale
R12, R13, R17
3
0
RES, 0, 5%, 0.063 W, 0402
0402
CRCW04020000Z0ED
Vishay-Dale
R14
1
40.2 k
RES, 40.2 k, 1%, 0.063 W, 0402
0402
CRCW040240K2FKED
Vishay-Dale
R16
1
100 k
RES, 100 k, 5%, 0.063 W, 0402
0402
CRCW0402100KJNED
Vishay-Dale
R18
1
3.0
RES, 3.0 Ω, 5%, 0.125W, 0805
0805
RC0805JR-073RL
Yageo America
Red
Test Point, Miniature, Red, TH
Red Miniature Testpoint
5000
Keystone
TP1, TP3, TP5, TP6, 14
TP8, TP9, TP11,
TP12, TP14, TP18,
TP19, TP20, TP21,
TP22
Printed Circuit Board
470 nH
SLUUBW9A – JULY 2018 – REVISED DECEMBER 2021
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1206_190
TPS543B20 SWIFT™ Step-Down Converter Evaluation Module User's Guide
Copyright © 2022 Texas Instruments Incorporated
25
List of Materials
www.ti.com
Table 11-1. BSR054EVM List of Materials (continued)
Designator
Quantity
Value
Description
Package Reference
Part Number
Alternate Part Number(1)
Manufacturer
Alternate Manufacturer(1)
TP2, TP13
2
PCB Pin, 0.04" DIA, TH
PCB Pin, 0.04" DIA, TH
3102-2-00-21-00-00-08-0
Mill-Max
TP4, TP7, TP10,
TP15, TP16, TP17
6
Black
Test Point, Miniature, Black, TH
Black Miniature Testpoint
5001
Keystone
TP23, TP24
2
SMT
Test Point, Miniature, SMT
Testpoint_Keystone_Miniatu 5015
re
Keystone
U1
1
25A FIXED FREQUENCY
NON-COMPENSATON STACKABLE
SYNCHRONOUS BUCK CONVERTER,
RVF0040A (LQFN-CLIP-40)
RVF0040A
TPS543B20EVM-054RVFT
Texas Instruments
C6
0
22 μF
CAP, CERM, 22 µF, 25 V, ±20%, X5R,
1206_190
1206_190
C3216X5R1E226M160AB
TDK
C10, C15, C16
0
100 μF
CAP, CERM, 100 µF, 6.3 V, ±20%, X5R,
1206
1206
GRM31CR60J107ME39L
MuRata
885012108005
Wurth Elektronik
C18, C19, C22
0
22 pF
CAP, CERM, 22 pF, 50 V, ±5%, C0G/NP0,
0402
0402
C1005C0G1H220J050BA
TDK
885012005057
Wurth Elektronik
FID1, FID2, FID3,
FID4, FID5, FID6
0
Fiducial mark. There is nothing to buy or
mount.
Fiducial
N/A
N/A
R3, R5, R9, R10
0
0
RES, 0, 5%, 0.063 W, 0402
0402
ERJ-2GE0R00X
Panasonic
R6, R11
0
0
RES, 0, 5%, 0.1 W, 0603
0603
CRCW06030000Z0EA
Vishay-Dale
R15
0
8.66 k
RES, 8.66 k, 1%, 0.063 W, 0402
0402
CRCW04028K66FKED
Vishay-Dale
(1)
26
Texas Instruments
Unless otherwise noted in the Alternate PartNumber, Alternate Manufacturer columns, or both, all parts may be substituted with equivalents.
TPS543B20 SWIFT™ Step-Down Converter Evaluation Module User's Guide
Copyright © 2022 Texas Instruments Incorporated
SLUUBW9A – JULY 2018 – REVISED DECEMBER 2021
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Revision History
12 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision * (July 2018) to Revision A (December 2021)
Page
• Updated the numbering format for tables, figures, and cross-references throughout the document. ................3
• Updated the user's guide title............................................................................................................................. 3
SLUUBW9A – JULY 2018 – REVISED DECEMBER 2021
TPS543B20 SWIFT™ Step-Down Converter Evaluation Module User's Guide
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Copyright © 2022 Texas Instruments Incorporated
27
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