Output circuit

An output circuit, comprising:

• an output transistor supplying a load current to a load;
• a control signal input circuit supplying a switching signal to turn on/off the output transistor in response to an external switching signal applied to the control signal input circuit;
• a load current detecting block detecting a current level of a current flowing through the output transistor;
• a first off-rate adjustment circuit coupled between a gate terminal and a source terminal of the output transistor and including a depression-type MOS transistor, the depression-type MOS transistor having a gate terminal coupled with a first output terminal of the load current detecting block;
• and
• a second off-rate adjustment circuit coupled between the gate terminal and the source terminal of the output transistor and including an enhancement-type MOS transistor, the enhancement-type MOS transistor having a gate terminal coupled with a second output terminal of the load current detecting block,
• wherein the load current detecting block outputs a first activation signal, which is dependent on the switching signal to turn off the output transistor, at the first output terminal to turn on the depression-type MOS transistor when the load current detecting block detects a first current level flows through the output transistor, and
• the load current detecting block outputs a second activation signal, which is independent from the external switching signal, to the second output terminal to turn on the enhancement-type MOS transistor when the load current detecting block detects a second current level larger than the first current level flows through the output transistor.