INTERNAL VOLTAGE GENERATOR OF SEMICONDUCTOR DEVICE

摘要

PURPOSE: An internal voltage generating circuit of a semiconductor device is provided to stably maintain a level of an internal voltage for a test with a target level by limiting a voltage level varying section of the internal voltage for the test above a preset voltage level. CONSTITUTION: A normal reference voltage generating unit generates a normal reference voltage with a constant voltage level regardless of the variation of a PVT. A test reference voltage generating unit(320) generates a test reference voltage by distributing a voltage level between an external power voltage and a normal reference voltage with a preset ratio. A test boosting voltage generating unit(340A) generates a test boosting voltage by a charge pumping operation based on the level of the test reference voltage. [Reference numerals] (300) Normal reference voltage generating unit; (324) Test power voltage generating unit; (340A) Test boosting voltage generating unit