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:
Feb. 08, 2022

Filed:

Sep. 01, 2020
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Ionut-Alin Ilie, Bucharest, RO;

Cristian Garbossa, Bressanone, IT;

Cristian Stefan Zegheru, Bucharest, RO;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/575 (2006.01); G05F 1/46 (2006.01); G05F 1/565 (2006.01); G05F 1/445 (2006.01);
U.S. Cl.
CPC ...
G05F 1/575 (2013.01); G05F 1/445 (2013.01); G05F 1/461 (2013.01); G05F 1/565 (2013.01);
Abstract

A circuit configured to perform low-dropout regulation of an output voltage includes a first buffer, a second buffer, controller circuitry, and switching circuitry. The first buffer includes a first driving element configured to provide a first current into a first output node based on the output voltage. The first bias circuitry is configured to bias the first current. The second buffer includes a second driving element configured to provide a second current into a second output node based on a voltage at the first output node. The second bias circuitry is configured to bias the second current. The controller circuitry is configured to generate a control signal based on a current at the pass device and switching circuitry configured to electrically couple the first output node to the control node of the pass device based on the control signal.


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