RT5014

® RT5014 7+6 Channels Power Management IC for DSC General Description The RT5014 is a complete power supply solution for digital still cameras and other hand held devices. The RT5014 is a multi-channel DC/DC power management unit including one synchronous step-up DC/DC converter with load disconnect (CH1), one selectable synchronous step-up/ step-down DC/DC converter (CH2), two synchronous stepdown DC/DC converters (CH3/4), one synchronous high voltage step-up DC/DC converter (CH5), one asynchronous inverting DC/DC converter (CH6) and one WLED driver in synchronous high voltage step-up mode or current regulator mode (CH7). Besides, the RT5014 also includes six LDO regulators: one RTC_LDO, one High Voltage LDO for CCD+ bias power (CH8), one high PSRR LDO for AFE power (CH9), and three generic LDOs (CH10 to CH12). All P-MOSFETs are integrated and all frequency compensation network needed by DC/DC converters are built-in. RT5014 uses one sequence selection pin SEQ to select five preset sequences and uses I2C control interface to enable channels and adjust CH1/5/6/8/9/10/ 11/12 output voltage level and WLED dimming ratio and OVP threshold. RT5014 also includes a system reset function to monitor battery voltage. The RT5014 is designed to fulfill the applications for DSC as follows : CH1 is a synchronous step-up output for motor power. CH2 is a selectable synchronous step-up/step- down output for system I/O power. The operation mode is auto-selected by detecting external compone...