| 摘要 |
A stabilized regulator circuit is provided A first Pch transistor (PTr) (P 1 ) whose source is connected to a power supply line and whose drain is connected to an output terminal that outputs a load current, a PTr (P 2 ) whose source and gate are respectively connected to the source and gate of the PTr (P 1 ), resistor elements connected in series between the output terminal and ground, a resistor element (R 3 ) connected between a drain of P 2 and ground, and an amplifier which controls P 1 and P 2 based on a difference between potential of a connection point of the resistor elements and a reference. A comparator, with a differential amplifier input stage configured by an Nch transistor, compares potential difference between two ends of R 3 and potential difference between the connection point of the resistor elements and ground, and when the former is larger, controls P 1 so as to limit load current.
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