Fast settling low dropout voltage regulator
US9939831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2016 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | Apr 7, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Methods and systems for reducing the settling time of a voltage regulator are described. In some cases, the settling time of the voltage regulator may be reduced by detecting that the voltage regulator is transitioning from a standby mode to an active mode and drawing additional current from the output of the voltage regulator during a current boosting phase. The current boosting phase may correspond with a current boosting pulse that is initiated when an enable signal is received from a controller and then is ended when the output voltage of the voltage regulator is within a first voltage of the desired regulation voltage or has overshot the desired regulation voltage by a second voltage (e.g., has overshot the desired regulation voltage by 150 mV).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.