Dave Dilatush wrote: > Jai wrote... > > >>Just as a sort of update, I tried it with 20 ohms resistance... hoping to draw >>5/20 or 250mA. I couldn't even draw this much! I watched the voltage across >>the rail and dropped right to 2V, and then I shut it off immediately >>(considering what happened to my last 2). Could this really be the inductor, >>even with this little amount of current? What are typical inductors rated at >>(sorta like normal resistors are usual 1/4 watt)... it has no markings on it. >>It's pretty small, probably .5cm in diameter. > Looking at the MAX787 data sheet, I don't see any information on > inductor requirements- pretty disappointing, as Linear Technology > and National Semiconductor both normally include detailed > inductor information in their chip data sheets. Why Maxim didn't > do this for the MAX787, I can't figure. Somewhere in the MAX787 literature I saw a recommendation to look at the MAX724 data sheet: http://pdfserv.maxim-ic.com/arpdf/MAX724-MAX726.pdf On page 6 it give an itemized list of suggested components. Why they didn't just put this in the MAX787 data sheet, I do not know ... David W. Gulley Destiny Designs -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.