I have a 5V 2A DC power supply I plan to power a custom arduino with. However, I'm also using a NRF24l01+, which requires 3.3V. So, I'm in the market for a 3.3V regulator, but I'm unsure of which one to buy. Some have output current of 500mA, and some I've seen that cost more have output of 3A. Does it matter which one I buy?
I'm partially worried about frying the NRF24l01+. But I don't have enough of an understanding of voltage versus current and what can connect together. I'm more of a plug-and-play kind of person.