| CPC H02M 3/07 (2013.01) [H02M 1/0095 (2021.05)] | 20 Claims |
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1. An apparatus, comprising:
a switch circuit coupled to a regulated power supply node and including an inductor, a first capacitor, a second capacitor, and a plurality of switch devices, wherein the switch circuit is configured, for a particular switching sequence of a plurality of switching sequences, to:
magnetize the inductor using the first capacitor and the second capacitor during a first phase of the particular switching sequence;
de-magnetize the inductor, charge the first capacitor, and transfer a first amount of charge to the regulated power supply node during a second phase of the particular switching sequence;
magnetize the inductor using the first capacitor and the second capacitor, and transfer a second amount of charge to the regulated power supply node during a third phase of the particular switching sequence; and
de-magnetize the inductor, charge the first capacitor, and transfer a third amount of charge to the regulated power supply node during a fourth phase of the particular switching sequence; and
a control circuit configured to select the particular switching sequence based on respective voltage levels of an input power supply node and the regulated power supply node.
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