Patent ID: 6960907

Claim:
A regulator circuit comprising: a circuit control node; a circuit output node to which a load can be connected, a voltage at said circuit output node being determined based on a voltage signal at said circuit control node; an amplifier circuit having a first amplifier input and a second amplifier input, and further having an amplifier output, said first amplifier input configured for receiving a reference voltage, said amplifier circuit receiving power from a first voltage source; a source follower circuit having a source follower input node and a source follower output, said amplifier output configured to drive said source follower input node, said source follower output coupled to said circuit control node; a series-connected resistor and transistor circuit coupled to provide a bias at said source follower input node, said amplifier output coupled to a control node of said transistor, said amplifier output thereby driving said source follower via said series-connected resistor and transistor circuit; and a feedback circuit coupled between said circuit output node and said second amplifier input.