MP4561DQ-Z

更新时间： 2024-10-04 13:01:15

品牌	Logo	应用领域
芯源 - MPS		转换器
页数	文件大小	规格书
17页	340K
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MP4561DQ-Z 数据手册

MP4561

1.5A, 2MHz, 55V

Step-Down Converter

The Future of Analog IC Technology

DESCRIPTION

FEATURES

The MP4561 is a high frequency step-down

switching regulator with integrated internal high-

side high voltage power MOSFET. It provides

1.5A output with current mode control for fast loop

response and easy compensation.

•

Wide 3.8V to 55V Operating Input Range

300mΩ Internal Power MOSFET

Up to 2MHz Programmable Switching

Frequency

140μA Quiescent Current

Ceramic Capacitor Stable

External Soft-Start

Up to 95% Efficiency

Output Adjustable from 0.8V to 52V

Available in 3x3mm 10-Pin QFN

•

The wide 3.8V to 55V input range accommodates

a variety of step-down applications, including

those in automotive input environment. A 12µA

shutdown mode supply 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.

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

By switching at 2MHz, the MP4561 is able to

prevent EMI (Electromagnetic Interference) noise

problems, such as those found in AM radio and

ADSL applications.

The MP4561 is available in small 3mm x 3mm

10-pin QFN with exposed pad package.

TYPICAL APPLICATION

100nF

100

BST

10uH

1.2

V =12V

OUT

VIN

3.3V

22uF

6.3V

10uF

100V

MP4561

V =55V

COMP

FREQ

470pF

GND

10nF

0.5

1.5

I_OUT(A)

MP4561 Rev. 1.0

11/5/2012

www.MonolithicPower.com

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

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