EV2303DN-00A

3A, 28V, 340KHz Synchronous Rectified

Step-Down Converter

EVALUATION BOARD

EV2303DN-00A Rev. 1.1

www.MonolithicPower.com

1

2/13/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2006 MPS. All Rights Reserved.

The Future of Analog IC Technology

TM

TM

DESCRIPTION

The EV2303DN-00A is an evaluation board for

the MP2303, a monolithic synchronous buck

regulator.

The MP2303 integrates 120mΩ MOSFETS that

provide 3A continuous load current over a wide

operating input voltage of 4.75V to 28V.

Current mode control provides fast transient

response and cycle-by-cycle current limiting. An

adjustable soft-start prevents inrush current at

turn-on. In shutdown mode, the supply current

drops to 0.3µA.

This device, available in an 8-pin SOIC

package, provides a very compact system

solution with minimal reliance on external

components.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

4.75 – 28

V

Output Voltage

3.3

V

Output Current

3

A

FEATURES

• 3A Output Current

• Wide 4.75V to 28V Operating Input Range

• 3.3V Output, Adjustable from 0.80V to 25V

APPLICATIONS

• Distributed Power Systems

• Pre-Regulator for Linear Regulators

• Notebook Computers

“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic

Power Systems, Inc.

EV2303DN-00A EVALUATION BOARD

(L x W x H) 2.0” x 1.5” x 0.5”

(5.0cm x 3.8 x 1.2cm)

Board Number

MPS IC Number

EV2303DN-00A

MP2303DN

100

95

90

85

80

75

70

65

60

55

50

0

1000

2000

3000

LOAD CURRENT (mA)

EV2303_EC01

Efficiency vs

Load Current