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:
Dec. 17, 2024
Filed:
May. 25, 2023
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
John L. Melanson, Austin, TX (US);
John P. Lesso, Edinburgh, GB;
Cirrus Logic Inc., Austin, TX (US);
Abstract
This application relates to voltage regulators and, particular, to low-dropout regulators (LDOs). The regulator () has an output stage () which receives an input voltage (Vin) and outputs an output voltage (Vout) and which includes at least one transistor () as an output device configured to pass an output current to the output, based on a drive voltage (V). A differential amplifier () is configured to receive a feedback signal derived from the output voltage and also a reference voltage (REF) to generate an amplifier output to control the drive voltage (V) to minimise any difference between the feedback signal and the reference voltage. A controller () is operable to selectively reconfigure the output stage to provide a change in output current in response to a load activity signal (ACT), which is indicative of a change in load activity that results in a change in load current demand for a load connected, in use, to the output.