FEATURES
Charge Pump, 400mA Flash LED, Dual LDOs, and I2C Interface DESCRIPTION
Performance is optimized for use in single-cell Li-ion battery applications. A flashtimeout feature disables the flash if active for longer than 1 second. The SC622A also provides two low-dropout, low-noise linear regulators for powering a camera module or other peripheral circuits. The SC622A uses an I2C compatible serial interface. The interface controls all functions of the device, including flash current and two LDO voltage outputs. The flash/ spotlight output is triggered via either the I2C interface or a dedicated pin. In sleep mode, the device reduces quiescent current to 100μA while continuing to monitor the serial interface. The two LDOs can be enabled when the device is in sleep mode. Total current reduces to 0.1μA in shutdown. Input supply voltage range — 3.0V to 5.5V Charge pump modes — 1x, 1.5x and 2x Flash LED — 400mA max in flash mode, 250mA max continuous for spotligh...
Semtech Corporation
