EV2364DF-00A

1.5A, 23V, 1.4MHz Dual

Step-Down Converter Evaluation Board

EV2364DF-00A Rev. 1.2

www.MonolithicPower.com

1

10/6/2005

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2005 MPS. All Rights Reserved.

The Future of Analog IC Technology

TM

TM

GENERAL DESCRIPTION

The EV2364DF-00A is an evaluation board for

the

MP2364,

a

dual

output,

monolithic

step-down switch mode converter with built-in

internal power MOSFETs. It achieves 1.5A

continuous output current for each output over

a wide input supply range with excellent load

and line regulation.

Current mode operation provides fast transient

response and eases loop stabilization.

Fault condition protection includes cycle-by-cycle

current limiting and thermal shutdown. In

shutdown mode the regulator draws 40µA of

supply current.

The MP2364 requires a minimum number of

readily available standard external components.

ELECTRICAL SPECIFICATIONS

Parameter

Symbol

Value

Units

Input Voltage

4.75 to 23

V

Output Voltage A

3.3

V

Output Voltage B

2.5

V

FEATURES

• 1.5A Current for Each Output

• Ceramic Input and Output Capacitors

• Up to 90% Efficiency

• 40µA Shutdown Mode

• Fixed 1.4MHz Frequency

• Wide 4.75V to 23V Operating Input Range

• Programmable Under Voltage Lockout

• Programmable Soft-Start

APPLICATIONS

• Distributed Power Systems

• I/O and Core Supplies

• DSL Modems

• Set Top Boxes

• Cable Modems

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

Power Systems, Inc.

EV2364DF-00A EVALUATION BOARD

(L x W x H) 2.2” x 1.6” x 0.4”

(5.5cm x 4.1cm x 1.0cm)

Board Number

MPS IC Number

EV2364DF-00A

MP2364DF

100

90

80

70

60

50

0

0.5

1.0

1.5

LOAD CURRENT (A)

MP2364_EC01

Efficiency vs

Load Current