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    Details
    Author(s)
    Display Name
    Osvaldo Gasparri
    Affiliation
    Affiliation
    Università degli Studi Milano-Bicocca
    Display Name
    Aleksandar Bozic
    Affiliation
    Affiliation
    Infineon Technologies
    Display Name
    Paolo Del Croce
    Affiliation
    Affiliation
    Infineon Technologies Austria AG
    Affiliation
    Affiliation
    Università degli Studi Milano-Bicocca
    Abstract

    The paper presents a double-domain capacitor-less Low-DropOut (LDO) voltage regulator developed to drive a One Time Programmable (OTP) memory for circuit trimming in automotive applications. The LDO is powered by the car’s battery voltage and generates the OTP programming voltage, regardless of changes on the line and on the load equivalent capacitance and resistance. The LDO steadily provides a 10.8V output with a 0.5% nominal error consuming a 500µA idle current and it is able to deliver up to 10 mA to a 10 pF-variable resistance load. Settling time is < 1µs at fully load transient without presenting overshoot and ringing. An average current of 2.5mA flows in a programmed cell, making it distinguishable from a virgin cell where current is negligible. In a 0.35 µm CMOS technology, the LDO occupies an active area of 220x324 µm2. Measurements validate the proposed structure.