摘要 |
A control circuit for a switching supply, include: a first control circuit that selects one of a first signal to switch a boost mode and a step-down mode and a second signal to control an on-period of a switch based on an input voltage, the switch provided between a terminal to which the input voltage is applied and an inductor; and a second control circuit that controls the switching supply based on an output voltage and the selected one of the first signal and the second signal. |