MP3301

1.3MHz, 700mA, Fixed-Frequency

Step-Up Driver for up to 10 White LEDS

MP3301 Rev. 1.01

www.MonolithicPower.com

1

10/28/2013

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

© 2013 MPS. All Rights Reserved.

DESCRIPTION

The MP3301 is a step-up converter designed to

drive WLEDS arrays from a single-cell, lithium-ion

battery. The MP3301 uses a current-mode, fixed-

frequency architecture to regulate the LED

current, which is measured through an external

current sense resistor. Its low 200mV feedback

voltage

reduces

power

loss

and

improves

efficiency. The MP3301 turns off in the presence

of an open-circuit over-voltage condition.

The MP3301 includes under-voltage lockout,

current limiting, and thermal-overload protection

to prevent damage in the event of an output

overload.

The MP3301 is available in a small 5-pin TSOT23

package.

FEATURES

 Internal Power MOSFET

 Drives up to 10 White LEDs in Series

 Up to 89% Efficiency

 PWM and Analog Dimming

 1.3MHz Fixed Switching Frequency

 Low 200mV Feedback Voltage

 Internal 700mA Current Limit

 Open-Load Shutdown

 UVLO, Thermal Shutdown

 Available in TSOT23-5 Packages

APPLICATIONS

 Smart Phones

 Digital Still Cameras

 Small LCDs

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

status, please visit MPS website under Quality Assurance.

“Monolithic Power

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

Trademarks of Monolithic Power Systems, Inc.

TYPICAL APPLICATION

VIN

MP3301

En/Dim

L

D

Cin

Cout

Rsense

IN

SW

FB

GND

EN

LED