SLUUCY1 November   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5.   5
  6. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  7. 2Hardware
    1. 2.1 Configurations and Modifications
      1. 2.1.1 Output Voltage
      2. 2.1.2 Switching Frequency (FSEL Pin)
      3. 2.1.3 Current Limit, Soft-Start Time, and Internal Compensation (MODE Pin)
      4. 2.1.4 Adjustable UVLO
    2. 2.2 Input/Output Connections
    3. 2.3 Best Practices
  8. 3Implementation Results
    1. 3.1 Performance Characteristics Summary
  9. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layout
      1. 4.2.1 Layout
    3. 4.3 Bill of Materials
  10. 5Additional Information
    1.     Trademarks

Bill of Materials

Table 5-1 presents the bill of materials for the TPS543B25T.

Table 4-1 TPS543B25TEVM Bill of Materials
Designator Quantity Value Description Package Reference Part Number Manufacturer

!PCB1

1

Printed Circuit Board

SR007

Any

C1, C23

2

CAP CER 1UF 25 V X6S 0402

0402

GRM155C81E105KE11D

Murata

C2, C3, C4, C5, C6, C16, C17, C18, C19, C20, C21

11

22uF

CAP, CERM, 22 uF, 25 V, +/- 10%, X7R, 1210

1210

GRM32ER71E226KE15L

Murata

C7, C22

2

10uF

CAP, CERM, 10 uF, 25 V, +/- 10%, X7S, 0805

0805

GRM21BC71E106KE11L

Murata

C8, C31

2

0.1uF

CAP, CERM, 0.1 uF, 50 V, +/- 10%, X7R, 0402

0402

C1005X7R1H104K050BB

TDK

C9, C10, C11, C24, C25, C26

6

100uF

CAP, CERM, 100 µF, 6.3 V,+/- 20%, X7S, 1210

1210

GRM32EC70J107ME15L

Murata

C12, C29

2

100 nF

Chip Multilayer Ceramic Capacitors for General Purpose, 0201, 0.10uF, X7S, 22%, 10%, 6.3V

0201

GRM033C70J104KE14D

Murata

C13, C27

2

10uF

CAP, CERM, 10 uF, 6.3 V, +/- 10%, X7R, 0805

0805

GRM21BR70J106KE76L

Murata

C14, C28

2

1uF

CAP, CERM, 1 uF, 6.3 V,+/- 10%, X7R, 0402

0402

GRM155R70J105KA12D

Murata

C15

1

220 µF

220 µF 35 V Aluminum - Polymer Capacitors Radial, Can - SMD 22mOhm 2000 Hrs @ 105°C

SMT_ECAP_10MM3_10MM3

875075661008

Wurth Electronics

C30

1

2.2uF

CAP, CERM, 2.2 uF, 10 V, +/- 10%, X7S, 0402

0402

C1005X7S1A225K050BC

TDK

C32

1

47 pF

CAP, CERM, 47 pF, 50 V, +/- 1%, C0G/NP0, 0402

0402

GRM1555C1H470FA01D

Murata

C33

1

0.1uF

CAP, CERM, 0.1 uF, 25 V, +/- 5%, X7R, 0603

0603

C0603C104J3RACTU

Kemet

FID1, FID2, FID3, FID4, FID5, FID6

6

Fiducial mark. There is nothing to buy or mount.

N/A

N/A

N/A

H1, H2, H3, H4

4

Machine Screw, Round, #4-40 x 1/4, Nylon, Philips panhead

Screw

NY PMS 440 0025 PH

B&F Fastener Supply

H5, H6, H7, H8

4

Standoff, Hex, 0.5"L #4-40 Nylon

Standoff

1902C

Keystone

J1

1

Terminal Block, 5.08 mm, 4x1, Brass, TH

4x1 5.08 mm Terminal Block

ED120/4DS

On-Shore Technology

J2, J3

2

Terminal Block, 5.08 mm, 3x1, Brass, TH

3x1 5.08 mm Terminal Block

ED120/3DS

On-Shore Technology

J4, J5

2

Header, 2.54mm, 2x1, Gold, TH

Header, 2.54mm, 2x1, TH

TSW-102-08-G-S

Samtec

L1

1

150nH

Inductor, Shielded, Ferrite, 150 nH, 51 A, 0.00039 ohm, SMD

10.2x7mm

SLR1050A-151KEC

Coilcraft

LBL1

1

Thermal Transfer Printable Labels, 0.650" W x 0.200" H - 10,000 per roll

PCB Label 0.650 x 0.200 inch

THT-14-423-10

Brady

MP1, MP2

2

ROUND_SPACER

9774010243R

Wurth Electronics

Q1, Q2

2

30 V

MOSFET, N-CH, 30 V, 25 A, DQJ0008A (VSONP-8)

DQJ0008A

CSD17579Q5A

Texas Instruments

R1

1

49.9

RES, 49.9, 1%, 0.1 W, 0603

0603

RC0603FR-0749R9L

Yageo

R2, R3, R4

3

0

RES, 0, 0%, 1 W, AEC-Q200 Grade 0, Body 6.3x3.2mm

Body 6.3x3.2mm

RMCF2512ZT0R00

Stackpole Electronics Inc

R5, R10

2

10

RES, 10.0, 1%, 0.063 W, 0402

0402

CRCW040210R0FKED

Vishay-Dale

R6

1

16.9k

RES, 16.9 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402

0402

CRCW040216K9FKED

Vishay-Dale

R7

1

10k

RES, 10 k, 5%, 0.1 W, AEC-Q200 Grade 0, 0402

0402

ERJ-2GEJ103X

Panasonic

R8

1

6.04k

RES, 6.04 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402

0402

CRCW04026K04FKED

Vishay-Dale

R9

1

0

RES, 0, 5%, 0.063 W, 0402

0402

RC0402JR-070RL

Yageo America

R11, R14

2

4.99k

RES, 4.99 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0402

0402

ERJ-2RKF4991X

Panasonic

R12

1

4.87k

RES, 4.87 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402

0402

CRCW04024K87FKED

Vishay-Dale

R13

1

11.8k

RES, 11.8 k, 1%, 0.063 W, AEC-Q200 Grade 0, 0402

0402

CRCW040211K8FKED

Vishay-Dale

R15, R23

2

0

RES, 0, 5%, 0.063 W, AEC-Q200 Grade 0, 0402

0402

CRCW04020000Z0ED

Vishay-Dale

R16

1

100k

RES, 100 k, 5%, 0.1 W, 0603

0603

CRCW0603100KJNEAC

Vishay-Dale

R17, R18, R19, R20, R21, R22

6

0

RES, 0, 5%, 1 W, AEC-Q200 Grade 0, 2512

2512

CRCW25120000Z0EG

Vishay-Dale

R24

1

10.0k

RES, 10.0 k, 1%, 0.1 W, 0603

0603

ERJ-3EKF1002V

Panasonic

R25, R26, R27, R28

4

0.1

RES, 0.1, 1%, 3 W, 2512

2512

CRA2512-FZ-R100ELF

Bourns

SH-J1, SH-J2

2

1x2

Shunt, 100mil, Gold plated, Black

Shunt

SNT-100-BK-G

Samtec

TP1, TP15

2

Connector, Receptacle, 50 ohm, TH

SMB Connector

SMBR004D00

JAE Electronics

TP2, TP4

2

Test Point, Multipurpose, Red, TH

Red Multipurpose Testpoint

5010

Keystone

TP3, TP11, TP14

3

Test Point, Miniature, White, TH

White Miniature Testpoint

5002

Keystone

TP5, TP7, TP9, TP12

4

Test Point, Miniature, Red, TH

Red Miniature Testpoint

5000

Keystone

TP6, TP10

2

Test Point, Multipurpose, Black, TH

Black Multipurpose Testpoint

5011

Keystone

TP8, TP13, TP18

3

Test Point, Miniature, Black, TH

Black Miniature Testpoint

5001

Keystone

TP16, TP17

2

Test Point, Miniature, Yellow, TH

Yellow Miniature Testpoint

5004

Keystone

U1

1

4-V to 18-V Input, 25-A, Synchronous, SWIFT™ Step-Down Converter With Internally Compensated, Advanced Current Mode Control in Thermally Enhanced Package

WQFN-FCRLF17

TPS543B25TRASR

Texas Instruments

U2

1

Single Bus Buffer Gate with 3-State Output, DCK0005A, LARGE T&R

DCK0005A

SN74AHC1G125DCKR

Texas Instruments

C34, C35, C36, C37, C38, C39

0

100uF

CAP, CERM, 100 µF, 6.3 V,+/- 20%, X7S, 1210

1210

GRM32EC70J107ME15L

Murata