MP8352

3V-6V Input, 6A, 600kHz Step-Down Converter

with Synchronizable Gate Driver

MP8352 Rev. 1.0

www.MonolithicPower.com

1

1/25/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2010 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP8352 is a monolithic step-down switch

mode converter with a built in internal power

MOSFET. It achieves 6A 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 MP8352 requires a minimum number of

readily available standard external components

and is available in a space saving 3mm x 4mm

14-pin QFN package.

FEATURES

• 3V to 6V Operating Input Range

• 6A Continuous Output Current

• 45mΩ Internal Power MOSFET Switch

• External Power Supply Vcc

• Power Good Indicator

• Synchronous Gate Driver Delivers up to

95% Efficiency

• Fixed 600KHz Frequency

• Synchronizable Up to 1.5MHz

• Cycle-by-Cycle Over Current Protection with

Hiccup

• Thermal Shutdown

• Output Adjustable from 0.8V

• Stable with Low ESR Output Ceramic

Capacitors

• Available in a 3mm x 4mm 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

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

MP8352

SW

BG

FB

BST

8, 9, 10

13

1

14

11

GND

IN

VCC

EN/SYNC

M2

PGOOD

PG

4, 5, 6

12

3

2

OFF ON

L1

2.2uH

0

123

45

6

60

70

80

90

100

LOAD CURRENT(A)

Vin=3V

Vin=5V

Vin=6V

Efficiency vs.

Output Current