GENERAL DESCRIPTION

The SGM3141B 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.

FEATURES

● Output Current Up to 700mA

● Up to 90 Efficiency in Torch Mode

● Adjustable Flash Mode Current

● 1× and 2× Automatic Modes for High Efficiency

● Input Voltage Range: 2.7V to 5.5V

● Minimum External Components: No Inductors

● High Frequency Operation: 2.2MHz

● Low 47mV Reference for Low Loss Sensing

● IQ< 1μA in Shutdown

● Built-In Soft-Start Limits Inrush Current

● Low Input and Output Ripple and Low EMI

● Output Over-Voltage Protection

● Over-Current and Over-Temperature Protection

● Available in Green TDFN-3×3-10L Package