Voltage mode low-dropout regulator circuit with reduced quiescent current
US11467614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2020 |
| Grant date | Oct 11, 2022 |
| Priority date | — |
| Expiry date | Dec 23, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/565
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A voltage regulator circuit includes a switch device that is coupled between an input power supply and a regulated power supply node. The voltage regulator circuit adjusts a value of a current flowing from the input power supply to the regulated power supply node by modifying a voltage level of a control node coupled to the switch device. A control circuit adjusts the voltage level of the control node using an error signal based on a comparison of the voltage level of the regulated power supply node and a reference voltage. To improve the response time of the voltage regulator circuit to changes in load current, the control circuit additionally sources current to and/or sinks current from the control node based on a voltage level of the control node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.