Yes, it’s heatsunk. Based on the power loss vs load current graph, and the efficiency one, does that mean that Rds is irrelevant? Its spec is 7-12mOhm however if we’re at 8A and worst case Rds, that would give 768mW, not the 1.1W or more shown in the graph, and better than 99% efficiency. Where is the disrepancy coming from?