Question
Can I put two parts of ADUM5010 or ADUM6010 in parallel for more power?
Answer
It can be done, but there is no provision for external regulation in these
devices, so the power will not be equally shared between the two devices.
It is probably a better idea to use the older ADuM6x0x or ADuM5x0x devices;
they are capable of 3x the power and are about equivalent to 2 of the new
devices in terms of PCB footprint.