How to supply 5v at higher current?

Hey folks... I'm trying to find a solution to supply 5 volts at a minimum of 50 watts--more would be better. The caveat is that it must be no taller than 1.5 inches (goes inside a pre-existing enclosure).

Suggestions welcome

 

Ultimately, the power is coming from the mains (120v). The expected load is around 30 watts (5v @ 6A). I'd like room to grow, though, as I may add more load in the future. This is why I am looking for a 50w solution.

 

Sorry guys I'm not trying to be insulting by being secretive. I'm working on a new idea.

Dorke, I did see those and similar units while researching. They might be a good option. My worry is voltage drop / ripple / bad power generally. Part of the load is a microcontroller that is adversely affected by bad power.

What does everyone think about using a higher voltage switch-mode PS (say 12v) and several L78S05 in parallel? Does that make sense?

Or would I be better off filtering that 5v psu, say with some substantial caps/whateve else is needed.

 

I'm looking at the Mean Well LPV-100-5.

Seems like a decent quality unit and will fit with some space to spare.

Datasheet: http://www.meanwell.com/mw_search/lpv-100/LPV-100-SPEC.PDF

 

OK. So maybe it's not figured out yet then. I'm certainly still open to suggestions.

Dorke: the board has its own 3.3 regulator, so 4.6v (5v @ 92%) is still sufficient there. Ripple & noise is what I'm most concerned about here.

I understand a substantial cap (bigger the better, yeah?) will filter out a lot of the ripple, but I'm less clear on how how to reduce noise.

 

OK I didn't know that. I understood ripple and noise to be two different things. I though ripple was repeating pulses from the power supply (like when rectifying AC to DC) as part of the waveform, and that noise was like random spikes here and there caused by the way switch mode PSU's work.

I understood why rectified AC produces ripples, but I didn't understand that noise is the same thing, this is just stuff I've read and am regurgitating.

Anyway....now that I know its the same thing, do you have any capacitor type/sizing recommendations? Am I wrong in thinking bigger is better in this case?