Patent ID: 7642759

Claim:
A method of coupling two or more voltage regulators in parallel to provide a combined output current, the method comprising: providing a first voltage regulator that generates a substantially constant voltage, the first voltage regulator having a power output stage; the power output stage having a control input and an output; providing a second voltage regulator that generates a substantially constant voltage, the second voltage regulator having a power output stage; the power output stage having a control input and an output; coupling the control input of the first voltage regulator output stage to the control input of the second voltage regulator output stage such that the voltage at an output of the first voltage regulator and an output of the second voltage regulator is substantially equal; coupling the output of the first voltage regulator to the output of the second voltage regulator in parallel such that the combined output current produced is substantially equal to the sum of current produced by the first voltage regulator and the second voltage regulator; and configuring the first voltage regulator output stage to include a voltage follower amplifier coupled to a first voltage reference circuit such that the output voltage of the first voltage regulator is substantially equal to an output voltage of the first voltage reference circuit.