Design Support

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Asynchronous boost converters require a Schottky diode as the rectifying element due to the diode's low forward voltage and fast turn-on time. Because of these characteristics asynchronous boost converters can have as good as, or better efficiency, than synchronous boost converters. This is especially true when the boost conversion ratios (VOUT/VIN) are high, and the Schottky diode conduction time is low.