SLUUCK9 april   2023 TPSM843B22

 

  1.    TPSM843B22EVM 20-A, Regulator Evaluation Module
  2.   Trademarks
  3. 1Introduction
    1. 1.1 Background
    2. 1.2 Before You Begin
    3. 1.3 Performance Characteristics Summary
  4. 2Configurations and Modifications
    1. 2.1 Output Voltage
    2. 2.2 Switching Frequency (FSEL Pin)
    3. 2.3 Current Limit, Soft-Start Time, and Internal Compensation (MSEL Pin)
    4. 2.4 Enable, UVLO (EN Pin)
  5. 3Test Setup and Results
    1. 3.1 Input and Output Connections
    2. 3.2 Efficiency
    3. 3.3 Output Voltage Regulation
    4. 3.4 Load Transient and Loop Response
    5. 3.5 Input Voltage Ripple
    6. 3.6 Start-up and Shutdown with EN
    7. 3.7 Start-up and Shutdown with VIN
    8. 3.8 Start-up Into Pre-Bias
    9. 3.9 Thermal Performance
  6. 4Board Layout
    1. 4.1 Layout
  7. 5Schematic and Bill of Materials
    1. 5.1 Schematic
    2. 5.2 Bill of Materials

5.2 Bill of Materials

Table 5-1 presents the bill of materials for the TPSM843B22EVM.

Table 5-1 TPSM843B22EVM Bill of Materials

Designator

Quantity

Value

Description

Package Reference

Part Number

Manufacturer

!PCB

1

Printed Circuit Board

BSR228

Any

C1, C19, C20

3

220 µF

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

SMT_ECAP_10MM3_10MM3

8.75076E+11

Wurth Electronics

C2, C6

2

100 uF

CAP, CERM, 100 µF, 25 V,+/- 20%, X7R, 6x5x5mm

6x5x5mm

CKG57NX7R1E107M500JH

TDK

C3, C7

2

22 uF

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

1210

GRM32ER71E226KE15L

MuRata

C4, C8, C24, C28

4

10 uF

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

0805

GRM21BC71E106KE11L

MuRata

C5, C9, C23, C27

4

1 µF

Ceramic Capacitor, 1uF ±10% 50VDC X7R 0805 Embossed T/R

0805

GCM21BR71H105KA03L

Murata

C10

1

100 pF

CAP, CERM, 100 pF, 50 V, +/- 5%, C0G/NP0, 0402

0402

GRM1555C1H101JA01D

MuRata

C11, C12, C13, C14

4

100 uF

CAP, CERM, 100 µF, 10 V,+/- 20%, X5R, 1210

1210

GRM32ER61A107ME20K

MuRata

C22, C26

2

0.1 uF

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

0402

C1005X7R1H104K050BB

TDK

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, J8

2

Terminal Block, 6.35mm, 2x1, TH

On-Shore_OSTT7020150

OSTT7020150

On-Shore Technology

J2, J3

2

Header, 100mil, 3x1, Tin, TH

Header, 3 PIN, 100mil, Tin

PEC03SAAN

Sullins Connector Solutions

J4, J5

2

Header, 100mil, 5x2, Tin, TH

Header, 5x2, 100mil, Tin

PEC05DAAN

Sullins Connector Solutions

J6

1

Header, 100mil, 6x2, Tin, TH

Header, 6x2, 100mil, Tin

PEC06DAAN

Sullins Connector Solutions

J7

1

Connector, Receptacle, 50 ohm, TH

SMB Connector

SMBR004D00

JAE Electronics

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

R3

1

24.3k

RES, 24.3 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060324K3FKEA

Vishay-Dale

R4

1

17.4k

RES, 17.4 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060317K4FKEA

Vishay-Dale

R5

1

11.8k

RES, 11.8 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060311K8FKEA

Vishay-Dale

R6

1

8.06k

RES, 8.06 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW06038K06FKEA

Vishay-Dale

R7

1

4.99k

RES, 4.99 k, 1%, 0.1 W, 0603

0603

CRCW06034K99FKEAC

Vishay-Dale

R8, R19

2

1.78k

RES, 1.78 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW06031K78FKEA

Vishay-Dale

R9

1

4.87k

RES, 4.87 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW06034K87FKEA

Vishay-Dale

R10

1

11.3k

RES, 11.3 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060311K3FKEA

Vishay-Dale

R11

1

14.3k

RES, 14.3 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060314K3FKEA

Vishay-Dale

R12

1

60.4k

RES, 60.4 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060360K4FKEA

Vishay-Dale

R13

1

10

RES, 10.0, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060310R0FKEA

Vishay-Dale

R14, R16, R22

3

10.0k

RES, 10.0 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060310K0FKEA

Vishay-Dale

R15

1

0

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

0402

CRCW04020000Z0ED

Vishay-Dale

R17

1

7.15k

RES, 7.15 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW06037K15FKEA

Vishay-Dale

R18

1

3.90k

RES, 3.90 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW06033K90FKEA

Vishay-Dale

R20

1

1.10k

RES, 1.10 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW06031K10FKEA

Vishay-Dale

R21

1

768

RES, 768, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW0603768RFKEA

Vishay-Dale

R23

1

49.9

RES, 49.9, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060349R9FKEA

Vishay-Dale

SH-J2, SH-J3, SH-J4, SH-J5, SH-J6

5

1x2

Shunt, 100mil, Gold plated, Black

Shunt

SNT-100-BK-G

Samtec

TP1, TP10

2

Test Point, Multipurpose, Red, TH

Red Multipurpose Testpoint

5010

Keystone Electronics

TP2, TP11, TP12, TP13, TP14

5

Test Point, Multipurpose, Black, TH

Black Multipurpose Testpoint

5011

Keystone Electronics

TP3, TP4, TP6, TP7

4

Test Point, Multipurpose, Yellow, TH

Yellow Multipurpose Testpoint

5014

Keystone Electronics

TP5, TP8

2

Test Point, Multipurpose, White, TH

White Multipurpose Testpoint

5012

Keystone Electronics

U1

1

High-efficiency 18-V, 20-A synchronous buck converter module, B3QFN25

B3QFN25

TPSM843B22RDG

Texas Instruments

C15, C16, C17, C18

0

100uF

CAP, CERM, 100 µF, 10 V,+/- 20%, X5R, 1210

1210

GRM32ER61A107ME20K

MuRata

C25

0

2.2uF

CAP, CERM, 2.2 uF, 10 V, +/- 10%, X5R, 0402

0402

C1005X5R1A225K050BC

TDK

R1

0

100k

RES, 100 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW0603100KFKEA

Vishay-Dale

R2

0

43.2k

RES, 43.2 k, 1%, 0.1 W, AEC-Q200 Grade 0, 0603

0603

CRCW060343K2FKEA

Vishay-Dale