Description
This evaluation board is an auxiliary power supply based on the VIPer12AS monolithic device with rather low output power required. It is a buck (step-down) converter with a positive output voltage referenced to the common ground based on the monolithic device VIPer12AS, which is a device that incorporates the PWM controller together with the vertical Power MOSFET switch in a SO-8 package. ST Components ■ VIPer12AS Off-line SMPS Primary ■ L78L05CD or L78M05CDT positive voltage regulator for optional 5V second output STEVAL-ISA005V1

Features
■ Switch mode general purpose power supply
■ Input: 85 to 264Vac @ 50/60Hz
■ Output: 15V, 100mA @ 50/60Hz
■ Output power (pick): 1.6W
■ Second output through linear regulator: 5V / 60 or 20mA