AN1293使用VB409提供一个负调节输出电压 AN1293 APPLICATION NOTE USING THE VB409 TO SUPPLY A NEGATIVE REGULATED OUTPUT VOLTAGE G. Nuzzarello - G. Di Stefano 1. ABSTRACT The purpose of this application note is to present the electrical schematic that allows the use of the VB409 as a -5V output regulator. The VB409 is a fully protected high voltage positive regulator designed in VIPower M1-2 technology. It can be directly connected to the rectified mains supplying a double output: +5V±5% dc and +16V (maximum) non regulated voltage. It has a……