Cool power regulator For n64 portable!

[kylerock96]

I found this power supply that outputs a switchable 5/3.3 volts. Maybe someone would be able to bypass the 5 volt portion completely?

 

[bud]

You could use the 5v to power an audio amp, OR bypass the 7805 on the n64 and use the 5v off the regulator. It's worth a try.

Also, your HTML link didn't work.

 

[kylerock96]

fix'd

 

[bud]

Dang. I missed the part about it being switchable. Disregard what I said.

Still, you really can't beat free samples from Texas Instruments.

 

[Snipeye]

If you'll notice, it says 'selectable' - meaning you can only use one at a time. Furthermore, it's linear - the 5v regulator onboard the n64 is linear, too, so that wouldn't make a difference, but using it for 3.3v would cut battery life roughly in half.

 

[XCVG]

Yeah, looks like an LM317 circuit to me. You can build those pretty easily, but they are terribly inefficient.

EDIT: Confirmed. The way the voltage switching works is kind of neat, though.