Description
This evaluation board is an off-line wide range dual output general-purpose power supply capable of delivering up to 24W through two outputs, +5V and +12V. The board is configured for secondary regulation with optocoupler feedback. Other output voltages can easily be achieved by changing the transformer and a few components on the board, as shown in the application note. Transformers are readily available for the following configurations: ■ 5V/12V ■ 5V/15V ■ 5V/24V ST components ■ VIPer53 ■ STTA106 ■ BYW98-200 ■ TL431A ■ STPS5L40 ■ 1.5KE220A STEVAL-ISA013V1

Features
■ Switch mode general purpose power supply
■ Input: 85 to 264Vac @ 50/60Hz
■ Output: 12V @ 1A & 5V @ 2.4A
■ Output power (peak) : 24W
■ Switching frequency 100kHz
■ Current mode control
■ 75% efficiency
■ Auxiliary undervoltage lockout with hysteresis
■ Output short circuit protection