Low dropout regulator
US12140985B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2022 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Oct 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/618
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A low dropout regulator is provided. The low dropout regulator includes a gain-stage module, an output setting stage, and a detection circuit. The gain-stage module generates a gain-stage signal. The output setting stage is electrically connected to the gain stage module. The output setting stage outputs a load current to an output terminal in response to the gain-stage signal. The detection circuit is electrically connected to the gain stage module and the output setting stage. The detection circuit includes a monitor circuit and a compensation circuit. The monitor circuit is electrically connected to the output terminal. The monitor circuit compares a charge-up duration of the signal at the output terminal with a pre-defined threshold duration, and generates a comparison signal accordingly. The compensation circuit is electrically connected to the gain-stage module and the output terminal. The compensation circuit selectively performs frequency compensation in response to the comparison signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.