MP2108

2A, 6V, 720KHz

Synchronous Buck Converter

INITIAL RELEASE – SPECIFICATIONS SUBJECT TO CHANGE

MP2108 Rev. 0.93

www.MonolithicPower.com

1

2/28/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2006 MPS. All Rights Reserved.

The Future of Analog IC Technology

TM

TM

DESCRIPTION

The MP2108 is a 2A, 720KHz synchronous

buck converter designed for low voltage

applications requiring high efficiency. It is

capable of providing output voltages as low as

0.9V, and integrates top and bottom switches to

minimize power loss and component count. The

720KHz switching frequency allows for small

filtering components, further reducing the

solution size.

The MP2108 includes cycle-by-cycle current

limiting and under voltage lockout. Internal

power switches, combined with the tiny 10-pin

MSOP or 3mm x 3mm QFN packages, provide

a solution requiring a minimum of board space.

EVALUATION BOARD REFERENCE

Board Number

Dimensions

EV2108DQ/DK-00A

2.5”X x 2.0”Y x 0.5”Z

FEATURES

• 2A Output Current

• Synchronous Rectification

• Internal 160mΩ and 190mΩ Power Switches

• Input Range of 2.6V to 6V

• Over 90% Efficiency

• Zero Current Shutdown Mode

• Under Voltage Lockout Protection

• Soft-Start Operation

• Thermal Shutdown

• Internal Current Limit (Source & Sink)

• Tiny 10-Pin MSOP and 3x3 QFN Packages

APPLICATIONS

• SOHO Routers, PCMCIA Cards, Mini PCI

• Handheld Computers, PDAs

• Cell phones, Digital Still and Video Cameras

• Small LCD Displays

“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION

MP2108

LX

VIN

BST

1

3

7

4

5

9

8

6

10

2

FB

COMP

SS

PGND

SGND

VREF

RUN

OUTPUT

1.8V / 2A

INPUT

2.6V to 6V

MP2108_TAC_S01

OFF ON

10nF

10nF

3.3nF

10nF