Voltage regulator
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United States of America Patent
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Mar 15, 2011
Grant Date -
Jul 15, 2010
app pub date -
Mar 10, 2009
filing date -
Jan 14, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A voltage regulator includes a comparator, a first voltage output unit, a second voltage output unit, a third voltage output unit, a first switch and a second switch. The voltage regulator receives an operating voltage and a reference voltage generated by a reference voltage generator, and then outputs a corresponding output voltage. The voltage regulator of the present invention can provide an operation mode, a suspend mode and a standby mode and can be switched among these modes to provide corresponding current driving capacity for respective operation states. When in the operation mode, the voltage regulator can supply a great current. When in the suspend mode, the voltage regulator consumes less power. When in the standby mode, the voltage regulator consumes even less power.
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