MP38671

10A, 25V, 600KHz Step-Down Converter

with Synchronizable Gate Driver

MP38671 Rev. 1.1

www.MonolithicPower.com

1

9/21/2011

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP38671 is a monolithic step-down switch

mode converter with a built in internal power

MOSFET. It achieves 10A 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 MP38671 requires a minimum number of

readily available standard external components

and is available in a space saving 3 x4mm 14-pin

QFN package.

FEATURES

• Wide 4.5V to 25V Operating Input Range

• 10A Continuous Output Current

• 60mΩ Internal Power MOSFET Switch

• Power Good Indicator

• Synchronous Gate Driver Delivers up to

95% Efficiency

• Fixed 600KHz Frequency

• Synchronizable to >1MHz External Clock

• Cycle-by-Cycle Over Current Protection

• Thermal Shutdown

• Output Adjustable from 0.8V to 15V

• Stable with Low ESR Output Ceramic

Capacitor

• Available in a 3x4mm 14-Pin QFN Package

APPLICATIONS

•

Point of Load Regulator in Distributed

Power System

•

Digital Set Top Boxes

•

Personal Video Recorders

•

Broadband Communications

•

Flat Panel Television and Monitors

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

MP38671

SW

BG

FB

BST

8, 9, 10

13

1

14

11

GND

IN

VCC

EN/SYNC

PG

4, 5, 6

12

3

2

OFF ON

70

75

80

85

90

95

100

02468

10