Linear regulator with improved power supply ripple rejection
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United States of America Patent
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Oct 25, 2016
Grant Date -
Mar 24, 2016
app pub date -
Jan 10, 2014
filing date -
Jan 10, 2014
priority date (Note) -
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Abstract
Embodiments of the invention are generally directed to a linear regulator with improved power supply ripple rejection. An embodiment of an apparatus includes an linear regulator to receive a system power supply and to generate a regulated power supply; a first voltage reference generator to generate a first voltage reference for the linear regulator; a second voltage reference generator to generate a second voltage reference for the linear regulator; and a voltage reference and power switcher. In some embodiments, the voltage reference and power switcher is to switch a voltage reference for the linear regulator from the first voltage reference to the second voltage reference and is to switch a part of a power supply for the linear regulator from the system power supply to the regulated power supply.
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