Power supply apparatus with soft start control

A power supply apparatus comprising:

• a plurality of power supply circuits which supply voltages to respective loads;
• an individual soft start circuit including a first terminal for outputting a predetermined fixed voltage and a second terminal outputting a voltage that varies with time, the individual soft start circuit being operated when any of the plurality of supply voltages output from the plurality of power supply circuits is caused to make a transition individually;
• an individual soft start switch provided for each of the plurality of power supply circuits, the individual soft start switch connecting the power supply circuit with the first terminal or the second terminal of the individual soft start circuit, wherein
• the plurality of power supply circuits apply soft start control to the respective supply voltages in accordance with the soft start voltage output from the individual soft start circuit.