The VB408, VB408B, VB408FI are fully protected positive adjustable voltage regulators made using a proprietary High Voltage VIPowerTM technology. The device can be connected to a D.C. source (up to 400V) or in off-line application directly to the rectified main (110V/ 230V). It is particularly suitable to be used in the manufacture of DC/DC converters, AC/DC converters,