Tunable voltage regulator circuit
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United States of America Patent
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-
Nov 6, 2018
Grant Date -
Jan 25, 2018
app pub date -
Apr 19, 2017
filing date -
Jul 19, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A voltage regulator has an output driver current mirror circuit and one or more control circuits. The output driver current mirror circuit includes an output driver transistor, a tunable resistance circuit, and a diode-connected transistor. The output driver transistor has one current electrode coupled to a supply voltage and another current electrode coupled to an output terminal for providing the output voltage of the voltage regulator. The tunable resistance circuit has one terminal coupled to a control electrode of the output driver transistor, and another terminal coupled to a current electrode of the diode-connected transistor. The one or more control circuits includes a comparator for controlling a current provided to the output driver current mirror in response to a feedback signal from the output terminal.
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