MP2482

5A, 30V, 420kHz

Step-Down Converter

MP2482 Rev.1.4

www.MonolithicPower.com

1

9/21/2011

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

Preliminary Specifications Subject to Change

© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2482 is a monolithic step-down switch

mode converter with a built in internal power

MOSFET. It achieves 5A continuous output

current 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.

The MP2482 requires a minimum number of

readily available standard external components

and is available in 8-pin SOIC package with and

without exposed pad.

FEATURES

• Wide 4.5V to 30V Operating Input Range

• 5A Output Current

• 50mΩ Internal Power MOSFET Switch

• Power Good Indicator

• Fixed 420kHz Frequency

• Synchronizable up to 1.5MHz

• Cycle-by-Cycle Over Current Protection with

hiccup

• Thermal Shutdown

• Output Adjustable from 0.81V

• Stable with Low ESR Output Ceramic

Capacitors

• Available in 8-Pin SOIC Package and

Thermally Enhanced 8-Pin SOIC Package

APPLICATIONS

•

Digital Set Top Boxes

•

Personal Video Recorders

•

Broadband Communications

•

Flat Panel Television and Monitors

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

FB

BST

1

5

4

2

GND

IN

EN/SYNC

3.3V @ 5A

D1

B530C

OFF ON

PG

VCC

8

7

6

3

Efficiency vs Output Current

OUTPUT CURRENT (A)

1

234

5

70

75

80

85

90

95

100