Patent · US Active

Technique to improve dropout in low-dropout regulators by drive adjustment

US7893672B2 · kind B2 · utility

10Cited by
6References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 4, 2009
Grant dateFeb 22, 2011
Priority date—
Expiry dateJun 23, 2029

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG05F1/56
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

An electronic device includes a low drop-out regulator for providing a regulated output voltage. The low drop-out regulator generally comprises a power MOSFET transistor having a gate coupled to a driver. The driver has a first path including an NMOS transistor and being coupled to the gate of the power MOSFET, a second path having a PMOS transistor and being coupled to the gate of the power MOSFET, and a switch for alternately switching between the first and second paths so as to provide a voltage to the gate of the power MOSFET ranging from ground to a power supply level.

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