Fast settling low dropout voltage regulator
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United States of America Patent
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Apr 10, 2018
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N/A
app pub date -
Jan 11, 2016
filing date -
Jan 11, 2016
priority date (Note) -
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Abstract
Methods and systems for reducing the settling time of a voltage regulator are described. In some cases, the settling time of the voltage regulator may be reduced by detecting that the voltage regulator is transitioning from a standby mode to an active mode and drawing additional current from the output of the voltage regulator during a current boosting phase. The current boosting phase may correspond with a current boosting pulse that is initiated when an enable signal is received from a controller and then is ended when the output voltage of the voltage regulator is within a first voltage of the desired regulation voltage or has overshot the desired regulation voltage by a second voltage (e.g., has overshot the desired regulation voltage by 150 mV).
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