MP38900/MP38900-B

High Efficiency, Fast Transient, 10A, 16V

Synchronous Step-down Converter

In a Tiny QFN20 (3x4mm) Package

MP38900/MP38900-B Rev. 1.1

www.MonolithicPower.com

1

6/25/2012

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

© 2012 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP38900/MP38900-B is a fully integrated,

high frequency synchronous rectified step-down

switch mode converter. It offers a very compact

solution to achieve 10A continuous output current

over a wide input supply range with excellent

load and line regulation. The

MP38900/

MP38900-B operates at high efficiency over a

wide output current load range.

The table below summarizes the variations

among the MP38900 and the MP38900-B.

MP38900

External

OCP

Latch Off

Soft SHDN

MP38900-B

OCP

Hiccup

Hi-Z SHDN

supply of MP38900 is designed to be biased

externally.

Constant-On-Time (COT) control mode provides

fast

transient

response

and

eases

loop

stabilization.

Full protection features include SCP, OCP, OVP,

UVP and thermal shutdown.

The MP38900/MP38900-B requires a minimum

number of readily available standard external

components and is available in a space-saving

QFN20 (3x4mm) package.

FEATURES

 Wide 4.5V to 16V Operating Input Range

 10A Output Current

 Internal 27mΩ High-Side, 10mΩ Low-Side

Power MOSFETs

 Proprietary Switching Loss Reduction

Technique

 1% Reference Voltage

 Programmable Soft Start Time

 Soft Shutdown (MP38900,)

 High-Z Shutdown (MP38900-B)

 Programmable Switching Frequency

 SCP, OCP, OVP, UVP Protection and

Thermal Shutdown

 Output Adjustable from 0.8V to 13V

 Available in a QFN20 (3x4mm) Package

APPLICATIONS



Notebook Systems and I/O Power



Networking Systems



Optical Communication Systems



Distributed Power POL Systems

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.