MP2106

1.5A, 15V, 800KHz

Synchronous Buck Converter

MP2106 Rev. 1.6

www.MonolithicPower.com

1

2/22/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2006 MPS. All Rights Reserved.

The Future of Analog IC Technology

TM

TM

DESCRIPTION

The MP2106 is a 1.5A, 800KHz 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

800KHz switching frequency reduces the size

of filtering components, further reducing the

solution size.

The MP2106 includes cycle-by-cycle current

limiting and under voltage lockout. The internal

power switches, combined with the tiny 10-pin

MSOP and QFN packages, provide a solution

requiring a minimum of surface area.

EVALUATION BOARD REFERENCE

Board Number

Dimensions

EV2106DQ/DK-00A

2.5”X x 2.0”Y x 0.5”Z

FEATURES

• 1.5A Output Current

• Synchronous Rectification

• Internal 210mΩ and 255mΩ Power Switches

• Input Range of 2.6V to 15V

• >90% Efficiency

• Zero Current Shutdown Mode

• Under Voltage Lockout Protection

• Soft-Start Operation

• Thermal Shutdown

• Internal Current Limit (Source & Sink)

• Tiny 10-Pin MSOP or QFN Package

APPLICATIONS

• DC/DC Regulation from Wall Adapters

• Portable Entertainment Systems

• Set Top Boxes

• Digital Video Cameras, DECT

• Networking Equipment

• Wireless Modems

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

Power Systems, Inc.

TYPICAL APPLICATION

MP2106

LX

VIN

BST

FB

6

7

8

2

9

10

4

3

1

5

COMP

SS

PGND

SGND

VREF

RUN

OUTPUT

1.8V / 1.5A

INPUT

2.6V to 15V

MP2106_TAC_S01

OFF ON

10nF

10nF

C7

C1

C2

C5

C3

C6

3.3nF

10nF

R4

R3

R2

L1

R1

100

90

80

70

60

50

40

30

20

10

0

0.01

0.1

1

10

LOAD CURRENT (A)

MP2106_TAC_EC02

Efficiency vs.

Load Current