MPQ4462

3.5A, 4MHz, 36V, Step-Down Converter

AEC-Q100 Qualified

MPQ4462 Rev. 1.11

www.MonolithicPower.com

1

7/17/2013

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© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MPQ4462 is a high-frequency, step-down,

switching regulator with an integrated, high-side,

high-voltage, power MOSFET. It provides a 3.5A

output with current-mode control for fast loop

response and easy compensation.

The wide 3.8V-to-36V input range accommodates

a variety of step-down applications, including

those in an automotive input environment. A

120µA operational quiescent current allows for

battery-powered applications.

Switching-frequency scaling allows for high

power-conversion efficiency over a wide load

range by scaling down the switching frequency at

light loads to reduce the switching and gate

driving losses.

The frequency foldback prevent inductor-current

runaway during startup, and thermal shutdown

provides reliable and fault tolerant operation.

The MPQ4462 can operate at up to 4MHz for

EMI-sensitive applications, such as AM radio

and ADSL applications.

The MPQ4462 is available in both 3mm×3mm

QFN10 and SOIC8E packages.

FEATURES

• 120μA Quiescent Current

• Wide 3.8V-to-36V Input Range

• 150mΩ Internal Power MOSFET

• Up to 4MHz Programmable Switching

Frequency

• Stable with a Ceramic Capacitor

• Internal Soft-Start

• Internally-Set Current Limit without a Current

Sensing Resistor

• Output Adjustable from 0.8V to 30V

• Available in 3mm×3mm QFN10 and SOIC8E

Packages.

• Available in AEC-Q1000 Qualified Grade 1

APPLICATIONS

• High-Voltage Power Conversion

• Automotive Systems

• Industrial Power Systems

• Distributed Power Systems

• Battery Powered Systems

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

status, please visit MPS website under Products, Quality Assurance page.

“MPS” and “The Future of Analog IC Technology” are registered trademarks of

Monolithic Power Systems, Inc.

TYPICAL APPLICATION