RT5021 - Richtek

RT5021 6 + 3 Channels DC/DC PMU

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 synchronou.

Features

Power Converter Unit z CH1 LV Sync Step-Up ` Support Up to 1A Loading, DVS (Dynamic Voltage Scaling), Load-Disconnect, Up to 95% Efficiency, PSM/PWM Selectable z CH2 LV Sync Step-Up/Down ` Support Up to 1A Loading, DVS, Up to 95% Efficiency, PSM/PWM Selectable z CH3/4 LV Sync Step-Down ` Support Up to 1.3A Loading, DVS, Up to 95% Efficiency, 100% (MAX) Duty Cycle, PSM/PWM Selectable z CH5 LV Sync Step-Down ` Support Up to 0.6A Loading, Up to 95% Efficiency, 100% (MAX) Duty Cycle ` Output Voltage can be Selected from Preset List or Set by External Feedback Network z CH6 Low Input Power LDO ` VI.