The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 08, 2025

Filed:

Sep. 19, 2022
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Gaurav Sharma, Cupertino, CA (US);

Nathan F. Hanagami, Cupertino, CA (US);

Mahir Uka, Nabern, DE;

Benedikt Wolf, Nabern, DE;

Assignee:

APPLE INC., Cupertino, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/46 (2006.01); G05F 1/575 (2006.01);
U.S. Cl.
CPC ...
G05F 1/575 (2013.01); G05F 1/461 (2013.01); G05F 1/462 (2013.01); G05F 1/468 (2013.01); G05F 1/46 (2013.01);
Abstract

A low-dropout (LDO) regulator circuit with dynamic transitioning between first and second operation modes. The LDO regulator circuit includes an operational amplifier with a first input connected to a reference voltage, a feedback circuit connected between a second input of the operational amplifier and an output of the LDO regulator circuit, and a pass transistor selectively coupled to the feedback circuit and an output of the operational amplifier via a set switches controlled by a switch mode enable signal. The LDO regulator circuit transitions between the first and second operation modes responsive to one or more changes of the switch mode enable signal. In the first operation mode, a load voltage at the output of the LDO regulator circuit has a first voltage value that depends on the reference voltage. In the second operation mode, the load voltage has a second voltage value independent from the reference voltage.


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