Phase locked loop-based power supply circuit and method, and chip

Abstract

The present disclosure provides a phase locked loop-based power supply circuit and method, and a chip. The phase locked loop-based power supply circuit includes: a phase locked loop circuit, including a voltage-controlled oscillator (VCO), the phase locked loop circuit outputs, through an output end of the phase locked loop circuit, a control voltage for controlling the VCO; and a voltage regulator, an input end of the voltage regulator is connected with the output end of the phase locked loop circuit, to make the control voltage outputted by the phase locked loop circuit form a power supply voltage after passing through the voltage regulator; the power supply voltage is used for supplying power for a load circuit; the load circuit includes at least one logic gate. The phase locked loop-based power supply circuit reduces timing variations in a digital circuit, and is conducive to implementing timing closure.

Dependencies are inferred from the claim text.