GENERAL DESCRIPTION
The IS31BL3232 is a current-regulated charge pump and ideal for powering high brightness LEDs for camera flash and torch applications. The charge pump can be set to regulate two current levels for Flash and Torch modes. The IS31BL3232 automatically switches between linear and boost modes ensuring that LED current does not depend on the LED forward voltage. In the Flash Mode the output will shut down automatically after 1s to save energy.

FEATURES
● Operates from 2.7V to 5.5V
● Up to 90% efficiency in Torch Mode
● Output current up to 1.2A(1s) in Flash Mode
● Adjustable output current in Flash Mode
● Time out function with 1s for Flash Mode
● Minimum external components, no external
   inductor required
● Automatic boost mode
● Less than 1µA shutdown current
● Low ripple and EMI
● Over voltage protection on output
● ESD HBM 8kV
● Short and over temperature protections
● Available in DFN-10 (3mm × 3mm) package

APPLICATIONS
● White LED backlighting
● Cellular phones
● Generic lighting/flash/strobe applications