公开(公告)号：US10088857B1

公开(公告)日：2018-10-02

申请号：US15715381

申请日：2017-09-26

Applicant: Apple Inc.

Inventor： Weibiao Zhang ,  Daniel J. Fritchman ,  Jafar Savoj ,  Venkatesh B Acharya

IPC: G05F1/563 ,  G05F1/575

Abstract: A highly granular voltage regulator is disclosed. The voltage regulator circuit includes first and second current mirror circuits coupled to first and second control circuits, respectively. The voltage regulator circuit further includes an amplifier having an inverting input and a non-inverting input. The first current mirror circuit is coupled to the non-inverting input, whereas the second current mirror circuit is coupled to the inverting input. The first control circuit is operable to control a current provided by the first current mirror circuit, while the second control circuit is operable to control a current provided by the second current mirror circuit.