Description: The iW671 secondary-side synchronous rectifier controller complements several of Renesas' primary-side controllers to deliver the high efficiency needed for high power density power supplies and power adapters. The iW671 uses proprietary digital adaptive turn-off control technology to replace the secondary-side Schottky diode with a MOSFET for high power density power supplies. While conventional synchronous rectifier designs require the use of a Schottky diode in parallel with the synchronous rectifier to