| 摘要 |
A DC-DC converter control circuit has an inductor configured to be interposed between a first node which is set to a first direct current voltage or a second direct current voltage and a second node which outputs an output voltage at a predetermined direct current voltage level, an error signal generator configured to generate an error signal depending on a voltage difference between a reference voltage and a voltage correlating with the output voltage, a ripple extractor configured to extract and output ripple components contained in the voltage of the first node, a single-ended signal generator configured to generate a single-ended signal based on the error signal and an output signal from the ripple extractor, and a switch drive unit configured to drive and control, based on the single-ended signal, a switch circuit which sets the first node to the first direct current voltage or the second direct current voltage. |
