| 摘要 |
A voltage rising/falling type switching regulator includes an inductor, a voltage-falling switching element, a voltage-falling rectifier element, a voltage-rising switching element, a voltage-rising synchronous rectification switching element, a control circuit part, and a reverse current detecting part. The control circuit part is arranged so that the voltage-falling switching element is switched ON and set in a conduction state at the time of voltage-rising operation, and the voltage-rising synchronous rectification switching element is switched ON and set in a conduction state at the time of voltage-falling operation. If the reverse current detecting part detects a reverse current, the voltage-falling switching element is switched OFF and set in a cut-off state. |
