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.
Patent No.:
Date of Patent:
Jan. 30, 2024
Filed:
Aug. 04, 2021
Stmicroelectronics SA, Montrouge, FR;
Lionel Vogt, La Rochette, FR;
Eoin Padraig O Hannaidh, Laval, FR;
STMicroelectronics SA, Montrouge, FR;
Abstract
A low-dropout regulator includes a power stage having an output terminal coupled to a load circuit operable in different operating modes in which it receives different output currents. An error amplifier has a first input coupled to a reference voltage and an output coupled to an input terminal of the power stage. A compensation circuit includes a first stage with an RC filter coupled to the input terminal of the power stage, and generating an initial compensation voltage. A second stage includes a first transistor coupled between a supply voltage and a second node, and controlled by a complementary control signal, a high-side capacitor coupled between the second node and ground, and a third transistor coupled between the initial compensation voltage and the second node, and controlled by a control signal representative of the current operating mode of the load circuit.