Regulator with low dropout voltage and improved stability
US9836070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2015 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Nov 10, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F3/45179
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
The regulator with a low dropout voltage comprises an error amplifier comprising a differential pair of input transistors and a circuit with folded cascode structure connected to the output of the said differential pair, an output stage connected to the output node of the error amplifier, and a Miller compensation capacitor connected between the output stage and the cascode node on the output side (XP) of the cascode circuit; the error amplifier furthermore comprises at least one inverting amplifier module in a feedback loop between the said cascode node and the gate of the cascode transistor of the cascode circuit connected between the said cascode node and the said output node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.