Method of operating voltage regulator
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United States of America Patent
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-
Jul 1, 2014
Grant Date -
May 23, 2013
app pub date -
Jan 17, 2013
filing date -
Apr 1, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
A method of operating a voltage regulator circuit includes generating a control signal by an amplifier of the voltage regulator circuit. The control signal is generated based on a reference signal at an inverting input of the amplifier and a feedback signal at a non-inverting input of the amplifier. A driving current flowing toward an output node of the voltage regulator circuit is generated by a driver responsive to the control signal, and the driver is coupled between a first power node and the output node. The feedback signal is generated responsive to a voltage level at the output node. A transistor, coupled between the output node and a second power node, is caused to operate in saturation mode during a period while the voltage regulator circuit is operating.
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