Patent ID: 7068093

Claim:
A semiconductor integrated circuit comprising: a voltage adjusting circuit generating an output voltage at an output node in response to an input voltage; and an internal circuit operating based on an operating current produced according to the output voltage of said voltage adjusting circuit, wherein said voltage adjusting circuit adjusts the output voltage generated at the output node in response to the input voltage so the output voltage is set in accordance with operating characteristics of said internal circuit that vary in accordance with temperature, said voltage adjusting circuit including a first transistor unit provided between a first voltage source and an internal node, and having a gate supplied with the input voltage, a second transistor unit provided between a voltage node coupled to a second voltage and the internal node, and having a gate connected to the internal node, a first resistor unit provided between said second transistor unit and the voltage node, a third transistor unit directly connected between the voltage node and the output node, and connected to said second transistor unit to form a current mirror circuit with said second transistor unit, and having a gate connected to the internal node, a fourth transistor unit provided between the output node and the first voltage source, and having a gate connected to the output node, and a second resistor unit provided between said fourth transistor unit and the first voltage source, wherein said first and second resistor units have resistances that change according to variations in temperature.