EV1593DN-00A (MP1593)

4.75V to 28V Input, Up to 3A Output

Step-Down DC/DC Converter

EVALUATION BOARD - INITIAL RELEASE

08/04, Rev. 1.0

www.MonolithicPower.com

1

Monolithic Power Systems

GENERAL DESCRIPTION

The EV1593DN-00A is the Evaluation Board for

MPS’ MP1593 Step-Down DC/DC Converter. It

features a wide supply range of 4.75V to 28V

and a continuous output current up to 3A. The

output voltage is set to 3.3V, but can be easily

adjusted to other levels from 1.22V. A 385KHz

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 – 28

V

Output Voltage

3.3

V

Output Current

0 – 3

A

FEATURES

• Up to 3A Output Current

• Wide 4.75 to 28V Operating Input Range

• Monolithic Buck with 100mΩ Internal FET

• Fixed 385KHz Frequency

• All Ceramic Input and Output Capacitors

• Programmable Soft-Start

• Programmable Input Under-Voltage Lockout

APPLICATIONS

• Distributed Power Systems

• Battery Charger

• Pre-Regulator for Linear Regulators

, “MPS”, “Monolithic Power Systems”, and “The Future of Analog IC

Technology” are Registered Trademarks of Monolithic Power Systems, Inc.

EV1593DN-00A EVALUATION BOARD

(2.1”X x 1.3”Y x 0.4”Z)

Board Number

MPS IC Number

EV1593DN-00A

MP1593

100

95

90

85

80

75

70

65

60

55

50

LOAD CURRENT (mA)

EV1593_TAC _EC01

Efficiency vs

Load Current

0

500 1000 1500 2000 2500 3000 3500