Datasheet > MPQ4456

MPQ4456

更新时间： 2024-04-09 19:03:03

品牌	Logo	应用领域
芯源 - MPS		/
页数	文件大小	规格书
16页	410K
描述
1A, 4MHz, 36V 降压变换器

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MPQ4456 数据手册

MPQ4456

Industrial Grade ,1A, 4MHz, 36V

Step-Down Converter

The Future of Analog IC Technology

FEATURES

DESCRIPTION



Guaranteed Industrial Temp Range

120μA Quiescent Current

Wide 3.8V to 36V Operating Input Range

300mΩ Internal Power MOSFET

Up to 4MHz Programmable Switching

Frequency

The MPQ4456 is a high frequency step-down

switching regulator with an integrated internal

high-side high voltage power MOSFET. It

provides 1 A output with current mode control

for fast loop response and easy compensation.

The wide 3.8V to 36V input range



Ceramic Capacitor Stable

Internal Soft-Start

Extended PWM Operation Reduces Noise

Up to 95% Efficiency

Output Adjustable from 0.8V to 36V

Available in 10-Pin 3x3 TQFN Package

accommodates

variety of step-down

applications, including those in automotive

systems. A 120µA operational quiescent current

is suitable for use in battery-powered

applications.

Special controlled circuitry allows the MPQ4456

to maintain PWM operation at low output

currents. This lowers noise by reducing the

pulse skipping.

APPLICATIONS



High Voltage Power Conversion

Automotive Systems

Industrial Power Systems

Distributed Power Systems

Battery Powered Systems

By switching at 4MHz, the MPQ4456 prevents

EMI (Electromagnetic Interference) noise

problems, such as those found in AM radio and

ADSL applications.

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.

The MPQ4456 is available in thin 10-pin 3mm x 3mm

TQFN package.

TYPICAL APPLICATION

Efficiency vs

Load Current

100

V =5V

150pF

8, 9

COMP

VIN

BST

36V Max

V =24V

V =12V

CONTROL

MPQ4456

FREQ

100nF

1, 2

OUT

5V @ 1A

10MQ100N

GND

V =3.3V

500

1000

LOAD CURRENT (mA)

MPQ4456 Rev. 1.01

1/27/2014

www.MonolithicPower.com

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

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