Patent ID: 6147479
Filing Date: 2000-11-14
Classification: G05F

Abstract:
A voltage down converter for converting an external power voltage into an internal power voltage and providing the internal power voltage to an internal circuitry, comprising:a reference voltage generation means for receiving the external power voltage and generating a constant reference voltage where variation of the external power voltage and change of circumstance temperature are compensated, the reference voltage generation means including:a generation means for reference voltage, which receives the external power voltage to generate a voltage based on the external power voltage, anda voltage amplification means for receiving the voltage from the generation means to generate the reference voltage where variation of the external power and change of circumstance temperature are compensated;a reference voltage converting means for converting the reference voltage from the reference voltage generation means into a reference voltage for stress mode or a reference voltage for normal mode; anda driving means for receiving the reference voltage from the reference voltage converting means to generate the internal power voltage required to operation of the internal circuitry.