What would be the best way for me to boost 3.7V to 12V with 300ma max draw?
I actually bought an lt1303 last week but I couldn't get anymore than 20mA from it, if I try to draw more, the avg voltage goes down, ~10v at 70mA (hadn't got the chance to hook it up to a scope yet). It looks like the lt1303 limits current draw from my battery to about 200mA.
Now, after digging around digikey a bit, I found the other part, MC34063A and it looks like it can do better. I say that only because it is has this "Current Output Rating" of 1.5A, and I don't completely understand what it means. Do you think I can at least get 100mA 12V from a 3.7V source if I use this and then just wire 3 in parallel so I can do 300mA. Thoughts?
Update: Here's a schematic that's close to what I have. just ignore the extra parts and replace L1 with a 15uH (also tried 30/45uH) and R4 with a 100K. It outputs ~13.6V with no load.