SP7685 Overview
The SP7685 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 SP7685 automatically switches modes between step-up and step-down ensuring that LED current does not depend on the forward voltage.
SP7685 Key Features
- Output Current up to 1.2A
- Up to 94% Efficiency in Torch Mode
- Adjustable FLASH Mode Current
- Minimum External ponents: No Inductors
- Automatic Buck/Boost Mode Switchover
- Wide VIN Range: 2.7V to 5.5V
- High Frequency Operation: 2.4 MHz
- 50mV Reference for low Loss Sensing
- IQ < 2μA in Shutdown
- PWM Dimming Control
SP7685 Applications
- White LED Torch/Flash for Cell Phones, DSCs, and Camcorders