Voltage regulator

A voltage regulator arranged to receive an input voltage and produce a regulated output voltage, the voltage regulator comprising:

• a current source transistor and a current sink transistor arranged to provide the output voltage at a node therebetween;
• a first error amplifier arranged to compare a feedback voltage to a reference voltage and apply a first control voltage to a gate terminal of the current source transistor, wherein said first control voltage is dependent on a difference between the feedback voltage and the reference voltage;
• a second error amplifier arranged in parallel to the first error amplifier, said second error amplifier being arranged to compare the feedback voltage to the reference voltage and apply a second control voltage to a gate terminal of the current sink transistor, wherein said second control voltage is dependent on a difference between the feedback voltage and the reference voltage;
• wherein said feedback voltage is derived from the output voltage and wherein the first error amplifier is arranged to vary a bias current provided to the second error amplifier.