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:
Aug. 30, 2016

Filed:

Feb. 14, 2014
Applicant:

Ams Ag, Unterpremstätten, AT;

Inventors:

Carlo Fiocchi, Belgioioso, IT;

Paolo Draghi, Pavia, IT;

Assignee:

AMS AG, Unterpremstaetten, AT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/575 (2006.01); G05F 1/565 (2006.01); G05F 1/10 (2006.01);
U.S. Cl.
CPC ...
G05F 1/575 (2013.01); G05F 1/10 (2013.01); G05F 1/565 (2013.01);
Abstract

A low dropout regulator comprises an output transistor with a controlled section between a first supply terminal and an output terminal, and a differential amplifier comprising a feedback input coupled to the output terminal, a reference input receiving a reference voltage, an output connected to a control terminal of the output transistor, and a pair of input transistors connected to a tail current source. A control terminal of a first transistor is connected to the reference input. A control terminal of a second transistor is connected to the feedback input. A first capacitive element is coupled between the output terminal and common connection of the input transistors of one pair with their tail current source. A second capacitive element is coupled between a second supply terminal and the common connection of the input transistors of one pair with their tail current source.


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