公开(公告)号：FR2819064A1

公开(公告)日：2002-07-05

申请号：FR0017296

申请日：2000-12-29

Applicant: ST MICROELECTRONICS SA

Inventor： HAMON CECILE ,  BERNARD CHRISTOPHE ,  PONS ALEXANDRE

IPC: G05F1/565 ,  G05F3/26 ,  G05F1/59 ,  H02M3/156

Abstract: The invention concerns a voltage regulator having an output terminal (2) designed to be connected to a load (R), comprising an operational amplifier (4) whereof the non-inverting input is connected to a reference potential (Vref), and the inverting input is connected to the operational amplifier output, a capacitive impedance connected between the inverting amplifier input and output, a power switch (T1) controlled by the inverting amplifier output, arranged so as to connect the output terminal (2) to a first supply potential (Vbat), said capacitive impedance comprising a portion (C2) capable of being shorted associated with active shorting means (8, 10) when the current flowing through the load is higher that a predetermined current.