MP8726

21V, 6A Peak Current, 500kHz

Synchronous Step-down Converter

MP8726 Rev. 0.92

www.MonolithicPower.com

1

6/15/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2010 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP8726 is a high frequency synchronous

rectified step-down switch mode converter with

built in internal power MOSFETs. It offers a

very compact solution to achieve 6A peak

output current over a wide input supply range

with excellent load and line regulation. The

MP8726 operates at high efficiency over a wide

output current load range.

Current mode operation provides fast transient

response and eases loop stabilization.

Full protection features include OCP and thermal

shut down.

The MP8726 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

• Wide 4.5V to 21V Operating Input Range

• 6A Peak Output Current

• Proprietary

Switching

Loss

Reduction

Technique

• Fixed 500kHz Switching Frequency

• Sync from 300kHz to 2MHz External Clock

• Internal Compensation

• OCP Protection and Thermal Shutdown

• Output Adjustable from 0.8V

• Available in 14-pin QFN3x4 Package

APPLICATIONS

•

Notebook Systems and I/O Power

•

Networking Systems

•

Digital Set Top Boxes

•

Personal Video Recorders

•

Flat Panel Television and Monitors

•

Distributed Power Systems

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION （FOR NOTEBOOK）

Efficiency

OUTPUT CURRENT (A)

0

10

20

30

40

50

60

70

80

90

100

01

234

5

6