Method and apparatus for LDO and distributed LDO transient response accelerator
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United States of America Patent
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Sep 1, 2015
Grant Date -
May 1, 2014
app pub date -
Mar 7, 2013
filing date -
Oct 31, 2012
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Abstract
A transient response accelerated (TRA) low dropout (LDO) regulator has an error amplifier having a feedback input, and a reference input configured to receive a reference voltage, and an output that controls a pass gate. The pass gate output voltage is applied to the feedback input. A transient response accelerator (TRA) circuit detects a rapid voltage drop on the pass gate output and, in response, applies a pulse control that rapidly lowers the resistance of the pass gate.
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