MP2229

High Efficiency 21V, 6A

Synchronous Step-Down Converter with External

Sync, Low-Power Mode, and External Soft-Start

MP2229 Rev. 1.0

www.MonolithicPower.com

1

2/12/2015

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© 2015 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2229 is a high-frequency, synchronous,

rectified, step-down, switch-mode converter

with internal power MOSFETs. It offers a

compact solution to achieve a 6A continuous

output current over a wide input-supply range

with excellent load and line regulation. The

MP2229 has synchronous-mode operation for

higher efficiency over the output current load

range.

Current-mode operation provides fast transient

response and eases loop stabilization. Full

protection

features

include

over-current

protection (OCP) and thermal shutdown (TSD).

The MP2229 requires a minimal number of

readily

available,

standard,

external

components and is available in a space-saving

3mm x 3mm 14-pin QFN package.

FEATURES

• Wide 4.5V to 21V Operating Input Range

• 6A Output Current

MOSFETs

• Programmable Switching Frequency

• Frequency SYNC from 300KHz to 2MHz

External Clock

• Low-Power Mode Selectable by an External

Signal

• External Soft-Start

• Pre-Bias Start-Up

• OCP with Hiccup Mode

• Thermal Shutdown

• Output Adjustable from 0.6V

• Available

in

a

QFN-14

(3mmx3mm)

Package

APPLICATIONS

• DSL Modems

• Cable Modems

• Set -Top Boxes

• Telecom

• Distributed Power Systems

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

MPS green status, please visit the MPS website under Quality Assurance.

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

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