Hi all,
EEV blog noob here. I have what is probably a rather noob question as well:
I'm interested in converting an old 16V 4.5A laptop power supply to 10V 4.5A (partly to actually use for a project and partly just to see if it can be done). I found the TI LM338T/NOPB, which I think would work for this, correct?
I know I also will need to dissipate the excess power, which I believe would be: (16V - 10V) * 4.5A = 27W. So I would need a heatsink capable of dissipating at least 27W.
I'm a little confused as to how I actually adjust the regulator to output 10V. I've gathered that it has to do with feedback into the adjust pin, but I'm not sure exactly how that works.
Anyway, I hope this isn't too noobish, and I appreciate any help you all might have!