On 8/31/06, John Chung wrote: > I have messing around with LM1117. From my experience > it is a good regulator. The thing I like about it is > the voltage regulation. When the circuit is open the > voltage reads 5.00volts. When I place the load which > is a PIC with blinking led the voltage drops only to > 4.99 volts*with voltage input ranging from 9v to > 18volts!*. This is remarkable to my standards. So my > question is, can we build a voltage regulator with > such good voltage regulation? I have been playing with > zeners and diodes and managed to get a +- 0.05 volts > with load and varies voltage input*9 volts to 18 > volts*. Did you ever work with LM723 ? greetings, Vasile -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist