DESCRIPTION
The SP6685 is a current regulated charge pump ideal for powering high brightness LEDs for camera flash applications. The charge pump can be set to regulate two current levels for FLASH and TORCH modes. The SP6685 automatically switches modes between step-up and step-down ensuring that LED current does not depend on the forward voltage. A low current sense reference voltage (50mV) allows the use of small 0603 current sensing resistors. The SP6685 is offered in 10-pin DFN package.

FEATURES
■ High Output Current Charge Pump: 700mA
■ Adjustable FLASH mode
■ x1 and x2 Automatic Modes for High Efficiency
■ Minimum External Components: No Inductors
■ High Frequency Operation: 2.4 MHz
■ Low 50mV reference for low loss sensing
■ 1 µA shutdown current
■ PWM Dimming Control
■ Over voltage protection on output
■ Over current protection
■ Over temperature protection
■ Space Saving 10-pin 3mm x 3mm DFN Package

APPLICATIONS
■ LED Torch/Flash for Cell Phones, DSCs, and Camcorders
■ Generic Lighting/Flash/Strobe Applications