MP9472

0.45A, 18V, Non-Synchronous, Rectified,

Step-Down Converter

MP9472 Rev. 1.0

www.MonolithicPower.com

1

12/9/2015

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© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP9472 is a monolithic, non-synchronous,

buck regulator that integrates a 175mΩ high-

side MOSFET to achieve 0.45A of continuous

load current over a wide 4.75V to 18V input

voltage range. Current mode control provides

fast transient response and cycle-by-cycle

current limit.

An adjustable soft-start prevents inrush current

at start-up. The supply current drops to 1µA in

shutdown mode.

The

MP9472

requires

minimal

external

components and is available in an 8-pin

TSOT23-8 package.

FEATURES

• 0.45A Output Current

• Wide 4.75V to 18V Operating Input Range

• Integrated High-Side Power MOSFET

• Output Adjustable from 0.923V to 15V

• Programmable Soft Start

• Stable with Low ESR Ceramic Output

Capacitors

• Fixed 340kHz Frequency

• Cycle-by-Cycle

Over-Current

Protection

(OCP)

• Input Under-Voltage Lockout (UVLO)

• 8-Pin TSOT23-8 Package

APPLICATIONS

• Distributed Power Systems

• Networking Systems

• FPGA, DSP, ASIC Power Supplies

• Green Electronics/Appliances

• Notebook Computers

All MPS parts are lead-free, halogen-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.

TYPICAL APPLICATION