Immediate response low dropout regulation system and operation method of a low dropout regulation system
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United States of America Patent
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Apr 12, 2016
Grant Date -
Sep 12, 2013
app pub date -
Mar 7, 2013
filing date -
Mar 9, 2012
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Abstract
An immediate response low dropout regulation system includes a low dropout regulation unit, a tracking voltage generation unit, and a self-driving unit. The low dropout regulation unit is used for generating and outputting an inner output voltage according to a reference voltage. The tracking voltage generation unit is used for generating and outputting a tracking voltage according to the reference voltage. The self-driving unit is coupled to the low dropout regulation unit and the tracking voltage generation unit. When a voltage difference between the tracking voltage and the inner output voltage is greater than a constant times threshold voltage, the self-driving unit provides a compensation current to an output terminal of the low dropout regulation unit.
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