Ultra-low quiescent current low dropout (LDO) voltage regulator with dynamic bias and bandwidth
US6806690B2 · kind B2 · utility
40Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2003 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Apr 21, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05F1/575
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An LDO regulator automatically switches from the SLEEP mode to the ON mode without the need for an externally generated control signal. The LDO regulator utilizes a pair of drive amplifiers to drive a SLEEP mode pass transistor and a normal ON mode pass transistor, respectively. The regulator also has a circuit for adjusting the bias applied to the amplifiers for each mode of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.