BUY VIPER20A https://www.utsource.net/itm/p/367187.html
SMPS Primary I.C.
Description: The VIPER20A is an integrated circuit (IC) from STMicroelectronics that functions as a monolithic low power Off-Line Switcher. Features: - Built-in 500V Power MOSFET - Programmable Frequency - Adjustable Output Voltage - Supply Voltage Range of 5V to 17V - Standby Power Consumption of Below 0.4W - High Efficiency at Light and Heavy Load - Internal Thermal Shut Down and Short Circuit Protection - Low Stand By Power Consumption Applications: The VIPER20A is suitable for use in off-line fixed output voltage SMPS for applications such as TVs, DVD players, printers, air conditioners, and other consumer and industrial applications. (For reference only)