Low drop-out voltage regulator
US8044653B2 · kind B2 · utility
13Cited by
17References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2007 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Oct 30, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A low drop-out DC voltage regulator regulates a voltage from a DC supply and includes: a pass device controllable to maintain a voltage at an output of the regulator and arranged to provide a first current from the DC supply, at least part of said first current being provided to a load coupled to the output of the regulator; and a current regulator coupled to said pass device and to the output of the regulator. The current regulator is arranged to conduct a second current controllable such that the first current through said pass device remains constant irrespective of variations in a load current to said load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.