On 25 Feb 2005 09:12:48 -0800, "SMJ" wrote:


Thanks for all the feedback. I tryed some of the websites you suggested
but came up with nothing. Anyone know where I can find a book, or
something online to learn more about this?

Look at data sheets for typical integrated regulators and they usually have
sections on external pass transistors for boosted current capability. Most
often these show both an NPN emitter follower and a PNP arrangement. Your unit
sounds like the PNP configuration inverted.