Hi everybody!!

I have constructed a tablet, the problem is I cant seem to find a suitable power supply that will satisfy the very tight space requirements.

My SBC requires 5v @ 4a and the touch screen needs 5v @ 1a.

I am looking into purchasing an 8000mAh 3.7 volt lithium polymer battery and need a charging and dc to dc boots circuit.

I have searched a plethora of websites looking for the answer including ebay but to no avail.

If anybody has any suggestions or can point me in the right direction it would be much help!

Thank you.

 

This is where I look for switching power supplies, and you can buy pre-fabricated boards.
http://www.ti.com/ww/en/simple_switcher/index.html

 

Thanks for the reply and I will look into that!

I am having another issue with finding a proper charger for my 8kmAh lipo. I need something with the smallest possible form factor. Any suggestions? Preferably something showing the charge level.

Thanks!

 

http://www.ti.com/lsds/ti/power-management/battery-charger-ic-products.page