EV2354DS-00A

4.75V to 23V IN, 2A OUT, 380KHz

Step-Down DC/DC Converter

EVALUATION BOARD

EV2354DS-00A Rev. 1.0

www.MonolithicPower.com

1

1/26/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2005 MPS. All Rights Reserved.

Monolithic Power Systems

GENERAL DESCRIPTION

The EV2354DS-00A is the Evaluation Board for

MPS’ MP2354 Step-Down DC/DC Converter. It

features a wide supply range of 4.75V to 23V

and a continuous output current up to 2A. The

output voltage is preset to 3.3V, but can be

easily adjusted to other levels from 1.22V. A

380KHz high switching frequency allows the

use of small, low cost capacitors and inductors.

Current mode control and an integrated power

MOSFET minimize component count, board area,

and solution cost. Fault condition protection

includes cycle-by-cycle current limiting, thermal

shutdown, and under-voltage lockout. Internal

soft-start reduces the turn-on stress. The small

but thermally enhanced 8-pin SOIC package

minimizes board area and provides excellent

thermal management.

ELECTRICAL SPECIFICATION

Parameter

Symbol

Value

Units

Supply Voltage

4.75 to 23

V

Output Voltage

3.3

V

Output Current

0 to 2

A

FEATURES

• Up to 2A Continuous Output Current

• Wide 4.75V to 23V Operating Input Range

• Monolithic Buck with 180mΩ Internal FET

• Fixed 380KHz Frequency

• All Ceramic Input and Output Capacitors

• Programmable Soft-Start

• Programmable Input Under-Voltage Lockout

APPLICATIONS

• Distributed Power Systems

• Battery Chargers

• Pre-Regulator for Linear Regulators

“MPS” and “Monolithic Power Systems”, are Registered Trademarks of

Monolithic Power Systems, Inc.

EV2354DS-00A EVALUATION BOARD

Dimensions (2.6”X x 1.9”Y x 0.4”Z)

Board Number

MPS IC Number

EV2354DS-00A

MP2354

95

90

85

80

75

70

65

60

OUTPUT CURRENT (A)

MP2354_TAC_EC01

Efficiency vs

Output Current

0

1.0

0.5

1.5

2.0

2.5

5.0V

3.3V

2.5V