Regulator with low dropout voltage and improved output stage
US9024602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2013 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Sep 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/46
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The regulator with low dropout voltage comprises an error amplifier and an output stage comprising an output transistor and a buffer circuit comprising an input connected to the output node of the error amplifier, an output connected to the output transistor, a follower amplifier connected between the input and the output of the buffer circuit. The buffer circuit furthermore comprises a transistor active load connected to the output of the follower amplifier and a negative feedback amplifier arranged in common gate configuration and connected between the output of the follower amplifier and the gate of the transistor of the active load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.