Voltage regulator and method for submicron CMOS circuits

摘要

A circuit is provided that generates a predetermined regulated voltage between first and second terminals that is positioned between first and second power supply voltage rails wherein the predetermined regulated voltage is substantially independent of temperature and power supply variation. The circuit includes a bandgap circuit for providing a predetermined reference potential that is substantially independent of temperature and power supply variation. A resistive circuit provides first and second voltages which are referenced with respect to the first supply voltage rail. A level translator circuit translates the second voltage provided by the resistive circuit to a third voltage which is referenced with respect to the second supply voltage rail. First and second operational amplifier circuits are provided for respectively transferring the first and third voltages respectively to first and second terminals wherein a voltage developed between the first and second terminals is substantially equal to the predetermined reference voltage of the bandgap circuit.