Power Management Circuits, ac dc voltage drop, ac to dc rectifier

 VIPer01 Series 30 V 60 kHz Energy Saving Off-Line High Voltage Converter-SSOP-10

https://www.futureelectronics.com/p/semiconductors--analog--power-management-circuit--ac-dc-voltage-converter/viper012lstr-stmicroelectronics-8148761