Patent ID: 11901806
Assignee: APPLE INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A system comprising:
an input voltage source configured to generate an input voltage on an input voltage node;
a multi-phase boost converter comprising a plurality of phases coupled between the input voltage node and a common boost node, wherein ones of the plurality of phases include:
an inductor coupled between the input voltage node and a switch node;
a first switch coupled between the switch node and a ground node; and
a second switch coupled between the switch node and a boost node; and

an output circuit including a pass device coupled between the boost node and a regulated supply voltage node, wherein the output circuit is configured to:
operate in a first mode, wherein operating in the first mode includes an analog driver controlling the pass device, and wherein operating in the first mode further includes clamping a voltage between the boost node and the regulated supply voltage node in response to a detection of a regulation event; and
operate in a second mode, wherein operating in the second mode includes a digital driver controlling the pass device to provide a regulated supply voltage, based on a voltage on the boost node, to the regulated supply voltage node.