Power Buffer Boosts Reference Current

Posted on Sep 3, 2012    11506

A method of boosting the output current of a reference and also protecting against overloads is shown

Power Buffer Boosts Reference Current
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in Fig. 66-5. IC1 acts as a power buffer. The LT1027 forces the output of V0ut and ground to be 5 V. The RC damper (50 and 0.1 ¥) provides loop stability. The output might oscillate if low ESR capacitors are connected to it, so use aluminum electrolytic or tantalum capacitors instead of ceramic or mylar.

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