Patent · US Active

Pre-charged fast wake up low-dropout regulator

US10156860B2 · kind B2 · utility

5Cited by
3References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 30, 2016
Grant dateDec 18, 2018
Priority date—
Expiry dateMar 30, 2036

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02M3/3382
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

Embodiments described herein present a new LDO design that eliminates the need for the sleep bias circuitry included in other systems. Further, the new LDO design can be biased with a small fraction of the operating current enabling the LDO to wake up substantially faster than previous LDO designs that include separate sleep circuitry. In some cases, the LDO can instantly (or faster than other LDOs) transition from a sleep mode to an operating mode enabling improved operation compared to prior LDOs. Furthermore, the new LDO design maintains a non-breakdown voltage across the transistors reducing the need to enter sleep mode to prevent transistors of the LDO from entering a breakdown region.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.