How to use the VIPER222LSTR IC?

[JToni.1]

I want develop a power supply board for my STM32 project.

For my power supply board I want use a VIPER222LSTR converter but reading the datasheet I realized that some resistors and capacitances values not are specified.

How to use the VIPER222LSTR IC?

The schematic

 

the datasheet: Link