SC622A
LED Light Management Unit
POWER MANAGEMENT Features
Charge Pump, 400mA Flash LED, Dual LDOs, and I2C Interface Description
The SC622A is a high efficiency charge pump LED driver using Semtech’s proprietary mAhXLifeTM technology.
Performance is optimized for use in single-cell Li-ion battery applications.
The charge pump provides continuous or bursted current to a flash LED using a dedicated flash driver current sink.
The load and supply conditions determine whether the charge pump operates in 1x, 1.
5x, or 2x mode.
A flashtimeout feature disables the flash if active for longer than 1 second.
The SC622A also provides two low-dropout, low-noise linear
regulators ...