WARNING! Powering your super duper mega expensive phone/tablet/laptop/widget from a bargain no-name Chinese sourced power supply module made for electronics hobbiests may not be a super smart idea! I you don’t know a diode from a capacitor you shouldn’t be messing with this sort of thing just go down your local Jaycar and buy a consumer ready charger.
A highly efficient step-down buck converter with a USB socket output which can handle a number of quick charging protocols (high voltage output), as well of course as standard 5v USB output by default, the following fast charging protocols are supported according to the specifications;
Takes input from 6v to 32v. Maximum power delivery is 24W (at fast charging 12v output, not below) the specifications given indicate a maximum (I will assume peak) current of 3.4A at 5v, 2.5A and 9v and 2A at 12v. Claimed efficiency from 90 to 97%
A mini heatsink on the IC might be a good idea if you are approaching the max current. The device is thermally protected, if it overheats it will shut down, and restart when it cools off.
Model MH-KC24 if you want to google, plenty of info out there.
CAUTIONS !
* Ensure the output voltage meets your personal tolerance needs before you go connecting your bajillion dollar smarty phone thing to it.
* If you don't own a multimeter and know how to use it, this isn't for you !!
