Hi Ron,
I started this thread to pursue a different direction/solution than the other thread, which I stated in the first post. This particular thread was originally began to pursue a simpler, non-IC solution to a simpler problem (ignoring low voltage). Through the posts of others and myself, it has slowly morphed to include elements of the other thread and possible solutions for both (similar) problems. This is mainly because most of the people posting on this thread also commented on the other thread as well, so they are, naturally, referencing it.
I do know what the problem is, and I do know what I want. But I am also willing to consider multiple avenues of getting there, or getting "close enough to there" if the trade-offs are acceptable.
I admit this has turned out a bit sloppy for forum etiquette, but we have gotten here honestly. I personally consider both threads as still open, and I continue to check both and comment when someone else leaves a comment on either, but if the moderators would like to merge the two threads I would understand and not object.
Thanks for your input. Your solution fits the voltage range well, but the price is 20 times that of the TPS63002 (which can handle up to 1.2A, which is plenty).