Low-dropout regulator with pole-zero tracking frequency compensation
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United States of America Patent
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Dec 18, 2018
Grant Date -
Jan 25, 2018
app pub date -
Jul 19, 2016
filing date -
Jul 19, 2016
priority date (Note) -
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Abstract
An electronic device may include: a load and a voltage regulator coupled to the load and configured to provide a load current, where the voltage regulator includes a first and a second pass device coupled in parallel and configured to operate simultaneously. A method may include providing current to a load using a first and a second pass device coupled in parallel and configured to operate simultaneously, where the first device provides a first current corresponding to a high-frequency component and the second device provides a second current corresponding to a low-frequency component; in response to a decrease in a low-frequency component, causing the second current to decrease and causing the low-frequency component to increase; and in response to an increase in the low-frequency component, causing the second current to increase and causing the low-frequency component to decrease.
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