RT9992 Description
This is a 5+2 CH integrated PMIC for DV application. There are 5 DC/DC converters : one synchronous step-up, one selectable synchronous step-up/step-down, two synchronous step-downs, and one WLED driver in either asynchronous step-up or current source mode, selectable by VOUT6 initial voltage.
RT9992 Key Features
- All Power MOSFETs Integrated
- 5 Channels with Internal pensation
- Flexible Enabling Control
- CH2 Synchronous Converter in Step-Up or StepDown Mode Selectable by SEL Pin
- Synchronous Step-Down DC/DC Converter Up to 95% Efficiency 100% (max) Duty Cycle
- Synchronous Step-Up DC/DC Converter Adjustable Output Voltage Up to 95% Efficiency
- Asynchronous Step-Up Converter to Drive WLED, Selectable Between Step-Up or Current Source LED Open Protection (OVP6)
- Load Disconnect Function for CH1 and CH2 Synchronous Step-Up Converter
- Fixed 2MHz Switching Frequency for CH1, CH2, CH3, and CH4
- Fixed 1MHz Switching Frequency for CH6