DIY 5v, 2A tablet dc-dc charger for car??
hello guys. i have a tablet, that has external DC source. at the AC/DC transformer it says : outpout 5v 2A..
so i want to make a dc-dc converter, to power the laptop in the car. My consern is this, will ANY 5v source do? or will i do a specific circuit, to give constant 2A?? (i really dont know how this thigns work...)
the reason i ask, is, its a bit hard to find a ready car charger (that dosent use the usb port)..
if just 5v, are enough, i was thinking to just use 5v Voltage regulators, becouse i want to avoid the switching power supply noise... anything i should look out for , here?