STMicroelectronics Buck Converter

The STEVAL-ISA178V1 board is a high-voltage buck-converter based on the VIPer01 device. This development board is a compact solution for AC-DC power supplies. It provides voltage conversion from main live to 5 V output voltage.
The VIPER01 devices form part of the ViperPlus family. They are high-voltage converters featuring an 800 V power MOSFET and PWM current mode controller.

Features and Benefits
Buck Topology
Compact board
Low current consumption
Pulse skip protection
Five-star energy efficiency for operation under no load (PIN_no_load < 20 mW @ 230 VAC )
Meets ErP Lot 6 Tier 2 requirements for household and office equipment
Compliant with the 10% load efficiency and 4-point average active-mode efficiency targets prescribed by the European CoC ver. 5 Tier 2
Meets IEC55022 Class B conducted EMI even with reduced EMI filter
VIPer01 800V avalanche rugged technology and embedded protections ensure enhanced system reliability
RoHS compliant

AC/DC Converters, STMicroelectronics