MP2107/MP2107A

4A, 6V Synchronous

Step-Down Switching Regulator

MP2107/MP2107A Rev. 1.1

www.MonolithicPower.com

1

10/13/2010

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2010 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2107 is an internally compensated

1.5MHz fixed-frequency PWM synchronous

step-down regulator. MP2107 operates from a

2.7V to 6V input and generates an output

voltage as low as 0.8V.

The MP2107 integrates a 80mΩ high-side

switch and a 60mΩ synchronous rectifier for

high efficiency without an external Schottky

diode. With peak current mode control and

internal compensation, the MP2107 based

solution delivers a very compact footprint with a

minimum component count.

The MP2107 is available in a small 3mm x 3mm

10-pin QFN package and the MP2107A is

available in an 8-pin SOIC package with an

exposed pad.

FEATURES

• 4A Output Current

• Input Operation Range: 2.7V to 6V

• 60mΩ Internal Power MOSFET Switches

• All Ceramic Capacitor Design

• Up to 95% Efficiency

• 1.5MHz Fixed Switching Frequency

• Internal Soft-Start

• Frequency Synchronization Input

• Power Good Output

• Cycle-by-Cycle Current Limiting

• Hiccup Short Circuit Protection

• Thermal Shutdown

• 3mm x 3mm 10-pin QFN (MP2107) and

8-pin SOIC (MP2107A) Packages

APPLICATIONS

• µP/ASIC/DSP/FPGA Core and I/O Supplies

• Printers and LCD TVs

• Network and Telecom Equipment

• Point of Load Regulators

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

Power Systems, Inc.

TYPICAL APPLICATION

BS

IN

FB

SW

EN/SYNC

POK

GND

1.8V / 4A

5V

POK

(MP2107)

OFF ON

C3

100nF

Efficiency vs

Output Current

0

70

75

85

90

95

80

1234

OUTPUT CURRENT (A)

5V to 2.5V

5V to 1.8V

5V to 3.3V