Question Resistors for Regulators

[Saix]

So I'm curious, what does everyone do for resistor values regarding the pth08080w regulators? They require some pretty oddly specific resistance to get the needed voltage for wiis so I haven't been able to find singular resistors with the correct values. I haven't actually strung them together yet, but I've worked out that I can get within 100 ohms or so for all the voltages if I add up 4 or 5 resistors (I have a box of resistors I got online). How precise does the voltage need to be? Is there a common consensus for resistors that everyone uses so that you don't have to use a bunch like I'd be doing?

 

[cheese]

I get close, usually a little under the resistance they want. I also use two resistors in series instead of just one to get closer, since you (practically) can't get the exact values they want. The rule of thumb I'd say is stay within +-0.05v, and aim for higher rather than lower. SS might be more informative on this though.

 

[Ikeprodigy]

This thread will answer most of the questions you have:

https://bitbuilt.net/forums/index.php?threads/resistors-for-custom-regulators.1078/