QUALCOMM Incorporated
SWITCHING AMPLIFIER ARCHITECTURE WITH MULTIPLE SUPPLIES

Abstract:

Certain aspects of the present disclosure are directed to an apparatus for voltage regulation. The apparatus generally includes a first switch, an inductive element, the first switch being coupled between a first voltage rail and a first terminal of the inductive element, a second switch coupled between a second voltage rail and the first terminal of the inductive element, a third switch coupled between a second terminal of the inductive element and a reference potential node, and a fourth switch coupled between the second terminal of the inductive element and an output node.