Semiconductor device with a voltage regulator

A semiconductor device with a voltage regulator for outputting a regulated voltage potentially varying in response to an output voltage of an internal voltage generation circuit, wherein said voltage regulator comprises:

• a driver including a pull-up transistor and a pull-down transistor serially connected between an output node of said internal voltage generation circuit and a reference potential terminal, for outputting a regulated voltage at its regulated voltage output node corresponding to the connection node of the pull-up and pull-down transistors;
• a voltage divider circuit configured to potentially subdivide said regulated voltage output at said regulated voltage output node to thereby obtain a first divided output voltage and a second divided output voltage;
• a first operational amplifier configured to control a current drivability of said pull-down transistor in accordance with a difference between a reference voltage and the first divided output voltage of said voltage divider circuit;
• and
• a second operational amplifier configured to control a current drivability of said pull-up transistor in accordance with a difference between the reference voltage and the second divided output voltage in a way such that said pull-down transistor increases in current drivability with a decrease in current drivability of said pull-down transistor and vice versa.