Patent ID: 7142045
Filing Date: 2006-11-28
Classification: G11C

Abstract:
1. An internal voltage generating circuit adapted to a semiconductor device, the internal voltage generating circuit comprising: a first reference voltage generator for generating a first reference voltage using an external voltage; a first internal voltage-driving portion for comparing the first reference voltage with a first internal voltage fed back to generate the first internal voltage following the first reference voltage; a second reference voltage generator for receiving the first internal voltage to generate a second reference voltage which is more insensitive to fluctuation of the external voltage than the first reference voltage; and a second internal voltage driving portion for receiving the first internal voltage as a power source and comparing the second reference voltage with a second internal voltage fed back to output the second internal voltage which follows the second reference voltage, wherein at least one of the first or second internal voltage-driving portions comprises a comparator and a driving transistor in signal communication with the comparator.