Patent ID: 8427129

Claim:
A high current drive bandgap based voltage regulator for providing an output voltage at a designed output voltage value, the high current drive bandgap based voltage regulator implemented in a substrate and comprising: a high current drive output transistor having a transistor input terminal and a transistor output terminal; a feedback network coupled between the transistor output terminal and the transistor input terminal; an operational amplifier in the feedback network, the operational amplifier having at least two operational amplifier input terminals and an operational amplifier output terminal, the operational amplifier output terminal being connected only by a non-active circuit element to the transistor input terminal, and the operational amplifier input terminals being coupled to the transistor output terminal using the feedback network and to a negative polarity terminal using first and second diodes; and a high current drive bandgap based voltage regulator output terminal connected only by a non-active circuit element to the transistor output terminal, the output voltage provided at the high current drive bandgap based voltage regulator output terminal; wherein the high current drive bandgap based voltage regulator is operable to provide a current of at least 100 μA to the high current drive bandgap based voltage regulator output terminal while maintaining the output voltage at the high current drive bandgap based voltage regulator output terminal at a value substantially equal to the designed output voltage value and depending on a bandgap voltage of the substrate.