FR9855 Datasheet (Fiti) - 5.5A Synchronous Step-Down DC/DC Converter

FR9855, 5.5A Synchronous Step-Down DC/DC Converter

The FR9855 is a synchronous step-down DC/DC converter with fast constant on time (FCOT) mode control.

The device provides 4.5V to 18V input voltage range and 5.5A continuous load current capability.

Operation frequency depends on Input and output voltage condition.

At light load condition, the FR985

FR9855 Features

* Low RDS(ON) Integrated Power MOSFET (70mΩ/38mΩ) Wide Input Voltage Range: 4.5V to 18V Output Voltage Range: 0.765V to 8V 5.5A Output Current FCOT Mode Enables Fast Transient Response Pseudo 630kHz Frequency Power Good Function (for FR9855SP Only) Input Under Voltage Lockout Adjustable Soft Start Fun