I have below schematic of a voltage regulator converting input voltage to 3.3V.
Both the inputs and output are global label (not power).
So during layout phase, should they be part of power plane? Or just like a regular net and I should route the same name net.
I think the later one. Please suggest
The global label or power symbol thing is a layout style choice, it’s up to you how you represent these interfaces.
Power planes are up to you, as a general rule I only bother with a power plane if I have a 4 layer or more board, although I often do a ground fill and try and keep one layer with minimal traces so the ground plane is near continuous.
There’s a tool in the KiCAD calculator for calculating what the minimum trace width for a given power is. Generally I try and use fairly broad traces for power.