| 摘要 |
The present invention discloses a multi-phase switching regulator and a droop circuit therefor. The droop circuit includes: multiple first resistors, which are coupled to corresponding phase nodes respectively to sense current through the phase nodes; a second resistor, which is coupled to the multiple first resistors; an error amplifier circuit, which has an inverting input end and a non-inverting input end, wherein the inverting input end is coupled to the second resistor and an output end of the error amplifier circuit, and the non-inverting input end is coupled to an output node; and a droop capacitor, which is coupled between the second resistor and the output node; wherein the droop circuit provides the droop signal according to a voltage drop across the second resistor or current through the second resistor.
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