EV3428-L-00A―17A, 600kHz, 20V WIDE INPUT SYNCHRONOUS BOOST CONVERTER EV BOARD

EV3428-L-00A Rev.1.1

www.MonolithicPower.com

2

11/5/2014

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© 2014 MPS. All Rights Reserved.

EVALUATION BOARD SCHEMATIC

MODE

SENSE

IN

VDD

EN

SS

SDR

OUT

FB

COMP

MP3428

U1

1.5uH

L1

20m

R4a

EN

VIN=3-10V

VOUT=12V

100k

R5

NS

R6

22uF

C1A

33nF

C4

0.1uF

C6

0

R7

2.2uF

C3

300k

R1

34k

R2

27k

R3

6.8nF

C5

NS

R8

22uF

C2A

NS

D1

22uF

C1C

22uF

C2B

22uF

C2C

22uF

C1B

Si4386

Q1

20m

20m

20m

R4b

R4c

R4d

EV3428-L-00A BILL OF MATERIALS

Qty

Value

Designator

Description

Manufacturer Manufacturer P/N

Package

6

22μF

C1A, C1B,

C1C, C2A,

C2B, C2C

25V, ceramic Capacitor

muRata

GRM32R71E226KL

1210

1

2.2μF

C3

25V, ceramic Capacitor

muRata

GRM21AR71E225KL

0805

1

33nF

C4

50V ceramic capacitor

muRata

GRM188R71H333KL

0603

1

6.8nF

C5

50V ceramic capacitor

muRata

GRM188R71H682KL

0603

1

0.1μF

C6

50V, ceramic Capacitor

muRata

GRM188R71H104KL

0603

1

300k

R1

Film resistor, 1%

YAGEO

RC0603FR-07300KL

0603

1

34k

R2

Film resistor, 1%

YAGEO

RC0603FR-0734KL

0603

1

27k

R3

Film resistor, 1%

YAGEO

RC0603FR-0727KL

0603

4

20m

R4a, R4b,

R4c, R4d

low ohmic Film resistor,

1%

YAGEO

PR0805FKF070R020L

0805

1

100k

R5

Film resistor, 5%

YAGEO

RC0603JR-07100KL

0603

0

NS

R6, R8

0603

1

0

R7

Film resistor, 5%

YAGEO

RC0603JR-070RL

0603

0

NS

D1

SOD-323

1

1.5μH

L1

6.6mOhm, 14A inductor

Wurth

744311150

SMD

1

Si4386

Q1

30V, 8mOhm 15A, N-

Channel MOS

VISHAY

Si4386DY

SOIC8

1

MP3428

U1

3~20V, 17A, 600kHz

boost converter

MPS

MP3428GL

QFN22-3*4