5v regulated but with more current?

Community General Discussions
1

Simple question:

Is there a simple cheap upgrade to the good ol' 7805? I need the standard 5v but all of walter's extra boards (i.e. LCD backlights) are starting to get close to, if not over, that 1 amp that the 7805 has to give. I would assume I would never need more than 2, maybe 3 amps.

DC-DC thingies maybe?

2

**Take a look at **

I’ve been using this for 2A and less:

http://www.nteinc.com/specs/1900to1999/pdf/nte1934.pdf

They were about $5 at my local electronics shop. Use a good heatsink!

3

Yep

Switchers are the way to go for higher currents. This part is easy to use:

http://www.national.com/pf/LM/LM25576.html

LM350’s will also give you 3A in a linear regulator.

4

Hey thanks guys!

I think the 3 amp 7805 will be just fine. I’m only coming down from 7.2V so we’re not talkin’ much here. I will check out the other links too --free education just reading data sheets, ya know! --I’m such a dork…

 

 

…Did you ever know that you’re my hero?

5

What about using multiple 5
What about using multiple 5 v regs? 1 thats splits off the smaller componenets, then the other that would be used for the higher power components?