64 w solar panel without a charge controller or battries but using a buck converter for direct regulated power?possible?

Greetings and thanks in advance for all the help. i shall start with explaining the situation.  i am going to be in the remote himalayas for about 2 months with a expedition team and for all our charging needs  we are going to carry a few solar panels, most of them are small 5-15 watt ones . the problem comes in when i introduced the 64 w thin film roll able panel. the specifications for the panel are as follows Model PVL-64 Rated Power 64 (Watts) Rated Voltage 16.5 (Vmp) Rated Current 3.9 (Imp) Open Circuit Voltage 23.8 (Voc) Short Circuit Current 4.8 (Isc) i intend  to use 3 LM2596 ebay buck converters to get 12 volts and 2 5V USB Output Converter DC 7V-24V To 5V 3A Step-Down Buck KIS3R33S Module KIS-3R33S for usb power. All of these will have a common source of power (the solar panel) and have separate outputs as i need to charge multiple things at once.  will this setup work or i need to think of something else.?

Question by 1st rover   |  last reply