®
RT5021
6 + 3 Channels DC/DC PMU with Li-ion Battery Charger for CMOS DSC/DV
General Description
The RT5021 is a complete power supply solution for digital still cameras and other hand held devices.
The RT5021 is composed of a multi-channel DC/DC power converter unit, a single-cell linear Li-ion battery charger, a charger type detector, and an I2C control interface.
The power converter unit includes one synchronous stepup converter (CH1), one synchronous step-up/down converter (CH2), three synchronous step-down converters (CH3/4/5), two LDOs with input power as low as 1.
5V (CH6/8), one WLED driver in synchronous high-voltage step-up mode or low-voltage current
regulator mode (CH7), and a ...