Step-Up Variable DC/DC Converter - microUSB

Based on the MT3608 IC.
Input 2V - 24Vdc. via solder pads or micro-USB socket.
Variable output 28V max.
Rated output current 2A max, 1A max continuous recommended, 3.5W approx.
Buck converter operating at 11kHz - efficiency >93%.
Dimensions 30mm x 17mm x 6.6mm