MP3213

700KHz/1.3MHz Boost Converter

with a 3.5A Switch

MP3213 Rev. 1.1

www.MonolithicPower.com

1

5/12/2006

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

© 2006 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP3213 is a current mode step-up

converter with a 3.5A, 0.18Ω internal switch to

provide a highly efficient regulator with fast

response. The MP3213 operates at 700KHz or

1.3MHz allowing for easy filtering and low

noise. An external compensation pin gives the

user flexibility in setting loop dynamics, which

allows the use of small, low-ESR ceramic

output capacitors. Soft-start results in small

inrush current and can be programmed with an

external capacitor. The MP3213 operates from

an input voltage as low as 2.5V and can

generate 12V at up to 500mA from a 5V supply.

The MP3213 includes under-voltage lockout,

current limiting and thermal overload protection

to prevent damage in the event of an output

overload. The MP3213 is available in a low

profile 8-pin MSOP package with exposed pad.

EVALUATION BOARD REFERENCE

Board Number

Dimensions

EV3213DH-00A

2.1”X x 2.1”Y x 0.5”Z

FEATURES

• 3.5A, 0.18Ω, 25V Power MOSFET

• Uses Tiny Capacitors and Inductors

• Pin Selectable 700KHz or 1.3MHz Fixed

Switching Frequency

• Programmable Soft-Start

• Operates with Input Voltage as Low as 2.5V

and Output Voltage as High as 22V

• 12V at 500mA from 5V Input

• UVLO, Thermal Shutdown

• Internal Current Limit

• Available in an 8-Pin MSOP Package with

Exposed Pad

APPLICATIONS

• LCD Displays

• Portable Applications

• Handheld Computers and PDAs

• Digital Still and Video Cameras

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

Monolithic Power Systems, Inc.

TYPICAL APPLICATION

5V

12V

MP3213

SW

IN

FB

COMP

SS

GND

EN

FSEL

65

2

1

4

8

3

7

OFF ON

D1

C4

10nF

C3

2.2nF

Efficiency vs

Load Current

100

95

90

85

80

75

70

65

60

55

50

LOAD CURRENT (mA)

1

10

100

1000