Patent ID: 8917069

Claim:
A battery powered apparatus comprising: a low dropout voltage regulation circuit connected to the battery comprising: a differential comparison circuit having a first input terminal connected to receive an adjustable reference voltage, a second input terminal connected to receive an output feedback signal from an output of the low dropout voltage regulation circuit, and an output terminal to provide a drive signal indicative of the difference between the adjustable reference voltage signal and the output feedback signal; a follower drive transistor having an input terminal in communication with the differential comparison circuit to receive the drive signal and a follower terminal connected to the output terminal of the low dropout voltage regulation circuit to provide the output voltage and current to a load circuit of the battery power apparatus; an adjustable internal current source connected to the output terminal of the low dropout voltage regulation circuit to provide a current for increasing a pole of the output of the low dropout voltage regulation circuit; a voltage adjustment circuit in communication with the differential comparison circuit to modify the adjustable reference voltage to change the output voltage at the output terminal of the low dropout voltage regulation circuit; and a current sense circuit connected to sense the output current that is passed through the follower drive transistor and in communication with the differential comparison circuit to transfer an output current sense signal to increase an internal pole of the low dropout voltage regulation circuit to permit rapid changes in the output voltage with changes to the adjustable reference voltage.