Patent ID: 7456680

Claim:
An internal voltage generating circuit comprising: a first reference voltage generating circuit generating a first reference voltage; a voltage dividing circuit producing a second reference voltage by dividing said first reference voltage, wherein said voltage dividing circuit includes a voltage-follower-connected differential amplifier receiving said first reference voltage, and a divided voltage output circuit dividing an output voltage of said differential amplifier to produce and output said second reference voltage; and a divided voltage producing circuit dividing said second reference voltage to produce a divided voltage, wherein said divided voltage producing circuit includes: a resistance division circuit effecting resistance division on said second reference voltage, a first level shifter effecting level shift on an output voltage of said resistance division circuit, a second level shifter effecting level shift on said divided voltage, and a drive circuit making a comparison between an output voltage of said second level shifter and an output voltage of said first level shifter to produce said divided voltage according to a result of said comparison.