I am doing a project in PCB design and I am fairly new on this.
The board I am creating has various components among them an Ethernet, USB controller some DDR memory and an FPGA. I have found schematics of even the same components that I use, which have the power regulators and the connections needed. But I do not want to just copy them out.
So in order to determine the power supply needed, to properly power up my system, what are the key points that I should look in the components datasheets? What I need to consider when choosing regulators?