FR9801 Overview
The FR9801 is a synchronous step-down DC/DC converter that provides wide 4.5V to 21V input voltage range and 2A continuous load current capability. The FR9801 fault protection includes cycle-by-cycle current limit, UVLO, output overvoltage protection and thermal shutdown. The adjustable soft-start function prevents inrush current at turn-on.
FR9801 Key Features
- High Efficiency up to 94%
- Low RDS(ON) Integrated Power MOSFET
- Internal pensation Function
- Wide Input Voltage Range: 4.5V to 21V
- Adjustable Output Voltage from 0.8V to 17.85V
- 2A Output Current
- Fixed 600KHz Switching Frequency
- Current Mode Operation
- Cycle-by-Cycle Current Limit
- Over-Temperature Protection with Auto Recovery