INTERNAL VOLTAGE CONVERTER REDUCING POWER CONSUMPTION WITH SELECTIVE VOLTAGE REFERENCE, AND SEMICONDUCTOR DEVICE COMPRISING THE SAME AND ITS METHOD, ESPECIALLY INCLUDING REFERENCE VOLTAGE GENERATION CIRCUIT AND ANALOG MUX AND VOLTAGE CONVERSION CIRCUIT

摘要

PURPOSE: An internal voltage converter reducing power consumption with a selective voltage reference and a semiconductor device comprising the same and its method are provided to generate a voltage reference with low power consumption among selective voltage references in an IVC(Internal Voltage Converter) standby state. CONSTITUTION: The first reference voltage generation circuit(111) generates the first reference voltage with lower power than power consumed while generating the second reference voltage, using the first power supply voltage. An analog MUX(113) outputs the second reference voltage when an IVC standby mode indication signal is in the first logic state, and outputs the first reference voltage when the IVC standby mode indication signal is in the second logic state. And a voltage conversion circuit(115) converts a level of an output voltage of the analog MUX, and generates an internal voltage stabilizing the level-converted voltage and improving current driving capability.