Patent ID: 7298567

Claim:
An electronic device comprising: a first circuit portion; and a linear regulator circuit connected to said first circuit portion, said linear regulator circuit comprising: a circuit control node; a circuit output node to which a load is 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 drive said source follower input node, said source follower output coupled to said circuit control node; and a feedback circuit coupled between said circuit output node and said second amplifier input; wherein a bandwidth at said circuit control node changes to track a bandwidth at said circuit output node as said load changes.