Tb6600?

[jtar40]

I got a question about the power supply again... So it's been common feedback that amps don't matter since the circuit will only draw as much as it needs ( in the case of powering a uc300eth-5lpt it's a minimum of 0.5 amps as someone stated above) volts of course must be lower than the max voltage allowed(less than 5 volts in my case), but is there anything I should be watching for in terms of "watts?" I'm not too familiar with watts although I know it's a common measurement, but would watts be relevant??
Thanks in advance!

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[Doddy]

Ivolts of course must be lower than the max voltage allowed(less than 5 volts in my case)

Voltage for the UC300ETH should be 5V - don't go lower.

Current draw is whatever the board draws - obviously specified at 500mA, so spec for at least that - it doesn't matter much if the PSU is substantially higher than this provided that it's regulated.

Power is a function of voltage and current. P=V*I, where I is the drawn current. So, the power supply should be rated at 5V * 0.5A (=500mA) = 2.5W - as a minimum.