| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC-DC converter that allows preventing an erroneous detection of an overcurrent.SOLUTION: A DC-DC converter includes: a mask control circuit outputting an overcurrent detection mask signal defining a mask period for masking an overcurrent detection result signal; a mask adjustment circuit adjusting the mask period according to a power-supply voltage; and an arithmetic circuit calculating the overcurrent detection result signal and the overcurrent detection mask signal and outputting an overcurrent control signal in which the overcurrent detection result signal is masked for the mask period. |
