BEST VOLTAGE REG???(+TEASER)

[nuke]

Hey guys, Im trying to wire up my PS1 screen to 12 volts, but first I need to bring 12V down to 7.5V. What is the best, cheapest, and most efficient Voltage Reg?
Also a little preview of my GCP.

 

[bentomo]

The cheapest possible way would be to use a 7808 linear regulator, but the most efficient would be a switching regulator from TI.

 

[nuke]

This will work right? http://focus.ti.com/docs/prod/folders/print/tps40057.html
Also will samples work?Thanks

 

[bentomo]

Yes samples will work, but not that one, try the tpa series.

 

[nuke]

Bentomo, all the products in the TPA series seems to be audio amps....

 

[Alie]

http://focus.ti.com/lit/ds/symlink/ptn78060w.pdf
You can use this, but if you're making a portable i would suggest to use a 7.4 volt battery so you don't need it.

 

[nuke]

I am using 7.4V batteries, but I don't know where to wire the screen to though,so I was just gonna wire it to the 12V with a reg.

 

[Ashen]

Depending on what batteries you are using, the max voltage can vary. Li-ion/polymer 7.4v packs fully charged voltage is close to 9v. Which will kill a PSOne screen. You'll still need a regulator.

 

[Cojiro]

Many portable n64s have two 3.7v lipos, and almost all of them use the psone screen, and I've never heard of anyone needing a regulator. I thought the highest was ~8.4, which was relatively safe?

 

[Alie]

Yep, usually the protection pcb of the batteries limits the voltage to 4.2 volts per cell, charging more will damage them.

 

[nuke]

Depending on what batteries you are using, the max voltage can vary. Li-ion/polymer 7.4v packs fully charged voltage is close to 9v. Which will kill a PSOne screen. You'll still need a regulator.

Yup. I ordered the reg alie posted. http://focus.ti.com/lit/ds/symlink/ptn78060w.pdf