Patent ID: 7064529

Claim:
A voltage regulator for supplying a low current load with a more regulated voltage supply and for supplying a high current load with a less regulated voltage supply comprising: high current regulation means for providing a coarse level of voltage regulation to a common supply voltage delivered to a high current load, said high current regulation means including a control means; and low current feedback regulation means for providing a fine level of regulation to said common supply voltage delivered to a low current load, the low current feedback regulation means having an output line connected to said control means of the high current regulation means whereby an output level of the feedback regulation means influences said high current regulation means; wherein the low current feedback regulation means comprises a bandgap regulator feeding a comparator and a low current output transistor, the low current output transistor connected to the common supply and to a voltage divider having a loop back to the comparator; and wherein the output transistor is connected to said output line coupled to said control means of the high current regulation means.