The VIPER318HDTR from STMicroelectronics is a multi-topology offline switch Integrated Circuit for boost, buck, buck-boost and flyback topologies, operating at 132 kHz in a 16-SO package.
The VIPER318LDTR from STMicroelectronics is an offline switch Integrated Circuit supporting boost, buck, buck-boost and flyback topologies, operating at 132 kHz, in a 16-SO package.