MP3306

30V, 700kHz Synchronous Step-Up

White LED Driver

MP3306 Rev.1.0

www.MonolithicPower.com

1

3/6/2013

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2013 MPS. All Rights Reserved.

The

Future

of

Analog

IC

T

echnology

DESCRIPTION

The MP3306 is a step-up converter designed for

driving white LEDs from 3V to 12V power supply.

The MP3306 uses current mode, fixed frequency

architecture to regulate the LED current, which is

measured through an external high-side current

sense resistor. The low 202mV feedback voltage

and synchronous rectification reduces power loss

and improves efficiency.

The MP3306 is turned off if an over-voltage

condition is present due to an open circuit

condition. The output disconnect feature allows

the output to be completely discharged. The

MP3306 includes under-voltage lockout, current

limiting, output short protection and thermal

overload protection.

The MP3306 is available in small 12-pin QFN

(2mm x 2mm) package.

FEATURES

•

3V~12V Input Voltage

•

Analog Dimming and PWM Dimming

•

Output-to-Input Disconnect in Shutdown

Mode

•

Programmable Open Load Shutdown

•

Output Short Protection

•

Low 202mV Feedback Voltage with +/-3%

accuracy

•

UVLO, Thermal Shutdown

•

Available in 2mm x 2mm QFN12 Package

APPLICATIONS

•

Smart Phone, MID, PDA

•

Digital Still Cameras

•

Small LCD Displays

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

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION

LED 1

LED 6

SW

EN

G N D

M P3306

L1

C 1

C 2

VIN

EN

G N D

R 1

VC C

IN

PW MO

C 5

O VP

R 2

R 3

L

C 3

PM WI

PW MI

B ST

O U T

C 4

FB