Voltage generator and semiconductor device including the same
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United States of America Patent
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Jul 16, 2024
Grant Date -
Jul 6, 2023
app pub date -
Dec 9, 2022
filing date -
Jan 3, 2022
priority date (Note) -
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Abstract
A voltage generator includes a charge pump circuit including a first charge pump having a plurality of first pumping capacitors, and a second charge pump having a plurality of second pumping capacitors having a capacitance different from a capacitance of each of the plurality of first pumping capacitors. The charge pump circuit is configured to supply a power supply voltage to a power mesh. The voltage generator further includes a controller configured to output a control signal based on a target level of the power supply voltage, and an oscillator configured to output a clock signal to the charge pump circuit. The oscillator outputs the clock signal to one of the first charge pump and the second charge pump based on the control signal.
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