KB3386 Overview
The KB3386 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 KB3386 automatically switches modes between step-up and step-down ensuring that LED current does not depend on the forward voltage.
KB3386 Key Features
- Output Current up to 400mA
- Up to 94% Efficiency in Torch Mode
- Automatic Softstart Limits Inrush Current
- Adjustable FLASH Mode
- x1 and x2 Automatic Modes for High Efficiency
- Minimum External ponents: No Inductors
- High Frequency Operation: 2.4 MHz
- Low 50mV Reference for low Loss Sensing
- 1+A Shutdown Current
- PWM Dimming Control
KB3386 Applications
- Output Current up to 400mA
- Up to 94% Efficiency in Torch Mode