EV9151-D-00A – 4A, 20V, 800KHZ SYNCHRONOUS STEP-DOWN CONVERTER

EV9151-D-00A Rev.1.0

www.MonolithicPower.com

2

2/4/2013

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2013 MPS. All Rights Reserved.

EVALUATION BOARD SCHEMATIC

SS

EN

PG

VC C

VIN

22nF

C 7

56pF

C 6

0

R 6

10K

R 1

L1

51

R 7

N S

C 8

3.16K

R 2

3.3V/4A

FR EQ

0

R 8

0

R 5

VOU T

C 4

C 1

C 1A

C 1B

100K

R 4

45.3K

R 3

100K

R 9

47nF

C 5

N S

R 11

17.8K

R 10

C 3

C 2

C 2A

C 2B

GN D

GN D

EN

VC C

PG

FR EQ

SS

FB

SW

SW

3

10

1,12,13,14

IN

BST

GND

4

9

5

8

2

11

6

7

M P9151

EV9151-D-00A BILL OF MATERIALS

Qty

Ref

Value

Description

Package

Manufacturer Part Number

2

C1, C1A

10µF

Ceramic Cap., 25V, X7R

1210

MuRata

GRM32DR71E106KA12L

2

C1B,C2B

0.1µF

Ceramic Cap., 25V, X7R

0805

MuRata

GRM21BR71E104KA01L

2

C2, C2A

22µF

Ceramic Cap., 10V, X7R

1210

MuRata

GRM32ER71A226KE20L

1

C3

0.1µF

Ceramic Cap., 25V, X7R

0603

MuRata

GRM188R71E104KA01D

1

C4

1µF

Ceramic Cap., 16V, X7R

0603

MuRata

GRM188R71C105KA12D

1

C5

47nF

Ceramic Cap., 16V, X7R

0603

MuRata

GRM188R71C473KA01D

1

C6

56pF

Ceramic Cap., 50V, C0G

0603

Murata

GRM1885C1H560JA01D

1

C7

22nF

Ceramic Cap., 50V, X7R

0603

Murata

GRM188R71H223KA01D

1

R1

10k

Film Res., 1%

0603

Yageo

RC0603FR-0710KL

1

R2

3.16k

Film Res., 1%

0603

Yageo

RC0603FR-073K16L

1

R3

45.3k

Film Res., 1%

0603

Yageo

RC0603FR-0745K3L

2

R4, R9

100k

Film Res., 1%

0603

Yageo

RC0603FR-07100KL

3

R5,

R6, R8

0

Film Res., 1%

0603

Yageo

RC0603JR-070RL

1

R7

51

Film Res.,1%

0603

Yageo

RC0603FR-0751RL

1

R10

17.8k

Film Res., 1%

0603

Yageo

RC0603FR-0717K8L

0

R11, C8

NS

1

L1

2.2µH

DCR=11.4m , Is=13A

7x7x4mm

Wurth

744311220

1

U1

MP9151 Step-Down Converter

QFN14 (2x3)

MPS

MP9151GD