For EN = Low of TPD3S-14-Q1, if the OUT pin is connected to other 5V source, the output discharge function will sink the current from the external 5V, and the power will be dissipated as below.
-. I = 5V / 300ohm = 16mA, P = 5^2 / 300 = 0.08W. Is it correct?
-. If the sink current will keep continuously, they need to care about thermal performance. In addition to thermal, is there any other items to have to check?