MP3214

500mA LED Camera Flash

Charge Pump

MP3214 Rev. 1.01

www.MonolithicPower.com

1

6/24/2011

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

© 2011 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP3214 is a low noise, high current charge

pump designed to drive LEDs at up to 500mA

with an input supply of 2.7 to 5.5 volts. The high

efficiency and low external parts count (two

small bypass caps, two small charge pump

caps, and one programming resistor) make the

MP3214 ideally suited for portable applications

where small size and high efficiency are critical.

The MP3214 controls the inrush current via a

soft start algorithm. High frequency switching of

the charge pump capacitors allows for very

small capacitance values.

The output current is set by an external resistor,

modulated by a PWM on the enable pin.

The

MP3214

automatically

adjusts

the

switching mode of the charge pump for optimal

efficiency.

The MP3214 is available in a 16 pin 3x3mm

QFN package.

FEATURES

• High Efficiency

• Up to 500mA Output Current

• Wide Supply Range of 2.7V to 5.5 V

• Small Solution Size

• Soft Start

• Low Shutdown Current

• Open/Short Led Protection

• No Inductors

• Programmable Output Current

• PWM Brightness Control

APPLICATIONS

• LED Backlight

• LED Flash

• LED Torch/Flashlight

• Cell Phones, Cameras, PDA, and Handheld

Equipment

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