Low dropout voltage regulator with variable load compensation
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United States of America Patent
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Sep 18, 2018
Grant Date -
Dec 28, 2017
app pub date -
Jun 24, 2016
filing date -
Jun 24, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A voltage regulator comprising an error amplifier, a pass transistor and a buffer circuit arranged between the error amplifier and the pass transistor. The buffer circuit comprises a load detector configured to detect a load current of the regulator by monitoring an output signal of the error amplifier. The buffer circuit further comprises a load compensator configured to receive a load signal from the load detector. The load signal indicates the load of the regulator. The load compensator is further configured to change its output impedance based on the load signal such that variations of the load of the voltage regulator are compensated. There is additionally provided a corresponding system, a corresponding method and a corresponding design structure.
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