MP1586

更新时间： 2024-11-01 12:36:47

品牌	Logo	应用领域
芯源 - MPS		转换器
页数	文件大小	规格书
16页	364K
描述
3A, 28V, 50kHz to 400kHz Step-Down Converter

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MP1586 数据手册

MP1586

3A, 28V, 50kHz to 400kHz

Step-Down Converter

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP1586 is a high frequency step-down

switching regulator with an integrated internal

high-side high voltage power MOSFET. It

provides 3A output with current mode control for

fast loop response and easy compensation.

•

Wide 4.5V to 28V Operating Input Range

Programmable Switching Frequency from

50kHz to 400kHz

High-Efficiency Pulse Skipping Mode for

Light Load

•

Ceramic Capacitor Stable

Internal Soft-Start

Internally Set Current Limit without a

Current Sensing Resistor

Available in SOIC8E Package.

The wide 4.5V to 28V input range accommodates

a variety of step-down applications, including

those in an automotive input environment. A

115µA operational quiescent current allows use in

battery-powered applications.

•

High power conversion efficiency over a wide

load range is achieved by scaling down the

switching frequency at light load condition to

reduce the switching and gate driving losses.

APPLICATIONS

•

High Voltage Power Conversion

Automotive Systems

Industrial Power Systems

Distributed Power Systems

Battery Powered Systems

The frequency foldback helps prevent inductor

current runaway during startup and thermal

shutdown provides reliable, fault tolerant

operation.

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

Monolithic Power Systems, Inc.

The MP1586 is available in a thermally enhanced

SOIC8E package.

TYPICAL APPLICATION

Efficiency vs.

100nF

Load Current

V_OUT=5V,F_SW=250kHz

100

=8V

BST

OUT

VIN

=12V

=24V

MP1586

COMP

FREQ

820pF

GND

0.01

0.1

LOAD CURRENT(A)

MP1586 Rev. 0.91

1/8/2010

www.MonolithicPower.com

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

12 3 4 5 6 7...16

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