In a direct-current stabilized power supply device provided with an output
transistor that receives an input voltage from the outside and a control
circuit that controls the output transistor so that an output voltage of
the direct-current stabilized power supply device is stabilized, there is
provided a voltage supply circuit that steps down the input voltage and
outputs the voltage thus obtained as a voltage for driving the control
circuit. The voltage supply circuit is built as a charge pump circuit
that steps down the input voltage and then outputs the voltage thus
obtained.