RT9907 Description
The RT9907 is a three channel power-supply solution for digital still cameras and other battery-powered devices. It integrates an asynchronous step-up and two synchronous step-down DC-DC converters. The RT9907 is targeted for applications that use two AA cells or a single lithium-ion battery.
RT9907 Key Features
- 1.5V to 5.5V Battery Input Voltage Range
- Main step-up DC-DC Converter
- Two Step-Down DC-DC Converters 0.8V to 5.5V Adjustable Output Voltage 94% Efficiency 100% Duty Cycle
- Up to 1.4MHz Switching Frequency
- 1μA Supply Current in Shutdown Mode
- Programmable Soft Start Function
- Independent Enable Pin (CH1, CH2, CH3)
- External pensation Network (CH1, CH2, CH3)
- Short Circuit Protection (CH1, CH2, CH3)
- Over Voltage Protection (CH2)
RT9907 Applications
- 1.5V to 5.5V Battery Input Voltage Range