MP1472

2A, 18V Synchronous Rectified

Step-Down Converter

MP1472 Rev. 1.0

www.MonolithicPower.com

1

9/2/2011

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© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP1472 is a monolithic synchronous buck

regulator. The device integrates a 175mΩ high-

side MOSFET and a 115mΩ low-side MOSFET

that provide 2A of continuous load current over

a wide input voltage of 4.75V to 18V. Current

mode control provides fast transient response

and cycle-by-cycle current limit.

An adjustable soft-start prevents inrush current

at turn-on, and in shutdown mode the supply

current drops to 1µA.

This device, available in an 8-pin TSOT23-8

package, provides a very compact solution with

minimal external components.

EVALUATION BOARD REFERENCE

Board Number

Dimensions

EV1472GJ-00A

2.5”X x 2.5”Y x 0.5”Z

FEATURES

 2A Output Current

 Wide 4.75V to 18V Operating Input Range

 Integrated Power MOSFET Switches

 Output Adjustable from 0.923V to 15V

 Up to 95% Efficiency

 Programmable Soft-Start

 Stable with Low ESR Ceramic Output

Capacitors

 Fixed 340kHz Frequency

 Cycle-by-Cycle Over Current Protection

 Input Under Voltage Lockout

 8–Pin TSOT23-8

APPLICATIONS

 Distributed Power Systems

 Networking Systems

 FPGA, DSP, ASIC Power Supplies

 Green Electronics/ Appliances

 Notebook Computers

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.

TYPICAL APPLICATION

LOAD CURRENT (A)

Efficiency vs. Load Current

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