Power density is a topic that most engineers are likely familiar with, but often don’t give it much thought. Or perhaps the thinking is that it doesn’t concern you. For your awareness, this article presents a general introduction on the subject, which seems to be a growing issue in electronic product design.
Power density is a term that more or less defines itself. For a more formal definition consider this: Power density is a measure of the amount of output power of a circuit or device divided by the volume of the device or product. The power value should be the continuous maximum amount of power the circuit can furnish under worst-case environmental conditions.