How to power my Prototype PCB - onboard Regulator or External Supply?
I am aying out the PCB for first prototype, I am now thinking
of laying out the power section but am wondering if I should
just power it from an external supply.
It is simple as it means I don't have to test and pick voltage
The power requirements may even change in the future depending on my CPLDs. So my questions are:
Are there any drawbacks I should be aware of ? Should the power section be always close to the relavent chips?
I feel I have sufficient decoupling now. But should I include a large capacitor that as 470uF and apply power straight to that?