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September 2007 Rev 2 1/13
AN1513
Application note
VIPower: 30 W SMPS using VIPer50A-E
Introduction
In a growing consumer market, cost effective solutions with good performances and
reliability able to meet energy saving international or local standards (Blue Angel) are
needed.
STMicroelectronics has, among its wide products
portfolio, the VIPer product family offering
excellent solutions with all features to design SMPS suitable for consumer applications.
Thanks to the VIPower Technology, these devices combine on the same silicon chip a state-
of-the-art PWM control circuit along with an optimized high voltage avalanche rugged
Vertical Power MOSFET.
The benefits obtained using these devices are:
■ Fewer components compared to a discrete solution
■ Less space on PCB
■ Simpler design phase
■ Automatic burst mode operation in standby for energy savings
■ Cost effective solution for SMPS
This document describes the results obtained from an off-line SMPS designed with
VIPer50A-E. It has been designed for European mains, providing 30 W on two outputs.
The main target of this application is total power consumption less than 1 W (Blue Angel
Norm) in standby mode delivering an output power of 400 mW.
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