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I'm reviewing an evaluation board for the TPS54A20 DC/DC converter from TI. This switcher is specific for low voltage designs. The output range is 0.5 - 2 V. That's a very narrow range. In that range it can deliver 10 A, with a typical input of 12 V.     Let's dig a little deeper into the "Two-phase, Synchronous Series Capacitor Buck Converter" design.     Series Capacitor Step-Down Converter The Buck converter uses a series capacitor to help stepping down the input vol ...