Datasheet > MP38870

MP38870

更新时间： 2024-10-01 01:20:31

品牌	Logo	应用领域
芯源 - MPS		栅
页数	文件大小	规格书
10页	543K
描述
3A, 14V, 600KHz Step-Down Converter with Synchronizable Gate Driver

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MP38870 数据手册

MP38870

3A, 14V, 600KHz Step-Down Converter

with Synchronizable Gate Driver

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP38870 is a monolithic step-down switch

mode converter with a built in internal high-side

power MOSFET. It achieves 3A continuous

output current over a wide input supply range

with excellent load and line regulation.

•

Wide 4.5V to 14V Operating Input Range

3A Continuous Output Current

80mΩ Internal Power MOSFET Switch

Power Good Indicator

Synchronous Gate Driver Delivers up to

95% Efficiency

Fixed 600KHz Frequency

External Synchronous Option: 250kHz-

1.5MHz

Cycle-by-Cycle Over Current Protection

Thermal Shutdown

Output Adjustable from 0.8V

Stable with Low ESR Output Ceramic

Capacitors

Current mode operation provides fast transient

response and reliable over current protection.

•

Fault condition protection includes cycle-by-cycle

current limiting and thermal shutdown.

•

The MP38870 requires a minimum number of

readily available standard external components

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

14-pin QFN package.

•

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

Efficiency vs.

Output Current

4, 5, 6

BST

100

=5V

8, 9, 10

OUT

3.3V @ 3A

VCC

=12V

EN/SYNC

OFF ON

GND

=3.3V

OUT

OUTPUT CURRENT (A)

MP38870 Rev. 1.1

10/22/2009

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...10

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