Patents Assigned to STMicroelectronics Design and Apparatus s.r.o.
  • Publication number: 20100148735
    Abstract: A low-dropout linear regulator includes an error amplifier which includes a cascaded arrangement of a differential amplifier and a gain stage. The gain stage includes a transistor driven by the differential amplifier to produce at a drive signal for an output stage of the regulator. The transistor is interposed over its source-drain line between a first resistive load included in a RC network creating a zero in the open loop gain of the regulator, and a second resistive load to produce a drive signal for the output stage of the regulator. The second resistive load is a non-linear compensation element to render current consumption linearly proportional to the load current to the regulator. The first resistive load is a non-linear element causing the frequency of said zero created by the RC network to decrease as the load current of the regulator decreases.
    Type: Application
    Filed: November 18, 2009
    Publication date: June 17, 2010
    Applicant: STMicroelectronics Design and Apparatus s.r.o.
    Inventor: Karel NAPRAVNIK