| 摘要 |
The present invention discloses a switching regulator and control method thereof, and a method for determining On-time in switching regulator. The switching regulator comprises: a power switch circuit including at least one power transistor switch which operates to convert an input voltage to an output voltage; a PWM generation circuit for generating a duty signal in a normal operation mode according to a feedback signal relating to the output voltage; a pulse skipping circuit for determining On-time in a pulse skipping mode according to a node with non-constant voltage level, the node being connected with the power transistor switch; and a driver circuit for driving the at least one power transistor switch according to one of the outputs from the PWM generation circuit and the pulse skipping circuit. |
