Switching regulator

A switching regulator including a voltage divider circuit, an error amplifier and a transistor, in which a portion or a whole portion of a voltage outputted from an output terminal of a D.C. power source to a load through said voltage divider circuit connected in parallel to said load is fed back to one of inputs of said error amplifier, a predetermined constant voltage is applied to the other input of said error amplifier, the voltage of said D.C. power source is switched by said transistor according to an error detection signal obtained from said error amplifier and a predetermined, stabilized voltage is generated at an output terminal of said switching regulator, said switching regulator comprising:

• a first series circuit of a first resistor, a first diode and a first capacitor for shortening a time period from a time at which said D.C. power source is turned ON up to a time at which said switching regulator enters into a voltage stabilizing operation, said series circuit being connected in parallel to a voltage dividing resistor of said voltage dividing resistor circuit provided on the side of said output terminal.