Control circuit and dc/dc converter

Abstract

A control circuit configured to be capable of controlling a DC/DC converter includes: a switching controller configured to be capable of controlling an output circuit of the DC/DC converter in a continuous mode where the output circuit is continuously operated and a discontinuous mode where an idle period is set, wherein the switching controller includes: a first comparator configured to output a differential signal indicating a result of comparison between a voltage based on an output voltage and a first reference voltage; an operation signal output circuit configured to output an operation signal for starting an operation of the DC/DC converter when the differential signal exceeds a predetermined level; and a corrector configured to raise a level of the first reference voltage or lower the voltage based on the output voltage after receiving a forced continuous operation signal that switches from the discontinuous mode to the continuous mode.

Dependencies are inferred from the claim text.