A switching regulator is provided with: a comparator producing a comparison signal by comparing a feedback voltage commensurate with an output voltage with a predetermined reference voltage; an oscillator producing a clock signal at a predetermined frequency; a latch circuit producing a pulse width modulation signal with a desired duty factor based on the comparison signal and the clock signal; an output transistor for which switching control is performed based on the pulse width modulation signal, the output transistor having one end from which a switching voltage in the form of a rectangular wave is outputted; and a phase compensation circuit connected between an output terminal of the latch circuit and a feedback voltage input terminal of the comparator.