EV2303DN-00A – 3A, 28V, 340KHz SYNCHRONOUS RECTIFIED, STEP-DOWN CONVERTER

EVALUATION BOARD

EV2303DN-00A Rev. 1.1

www.MonolithicPower.com

2

2/13/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2006 MPS. All Rights Reserved.

TM

EVALUATION BOARD SCHEMATIC

EN

SS

VIN

GND

SW

D1

NS

C3

4.7nF

C4

NS

VOUT

GND

EV2303_S01

C7

NS

R5

NS

C1

10nF

MP2303

U1

BS

IN

SW

GND

8

7

6

5

1

2

3

4

SS

EN

COMP

FB

C10

470pF

EV2303DN-00A BILL OF MATERIALS

Qty

Ref

Value

Description

Package

Manufacturer Part Number

1

C1

10nF

Ceramic Capacitor, 50V, X7R

0603

Any

2

C2 C8

10µF

Ceramic Capacitor, 35V, X7R

1210

Holystone

C1210X106M035T

1

C3

4.7nF

Ceramic Capacitor, 50V, X7R

0603

Any

2

C4 C7

Open

2

C5 C9

22µF

Ceramic Capacitor, 16V, X5R

1210

Taiyo Yuden

EMK325BJ226MM

1

C6

0.1µF

Ceramic Capacitor, 50V, X7R

0805

Any

1

C10

470pF Ceramic Capacitor, 50V, X7R

0805

Any

1

D1

Open

1

L1

10µH

Inductor, 4.45A

SMD

Sumida

CDRH105R-100NC

1

R1

30.9kΩ Resistor, 1%

0603

Any

1

R2

4.42kΩ Resistor, 1%

0603

Any

1

R3

10kΩ

Resistor, 1%

0603

Any

1

R4

100kΩ Resistor, 5%

0603

Any

1

R5

Open

1

U1

Synchronous Step-Down Converter

SO8

MPS

MP2303DN