Cx31993 Datasheet -

At 5V VBUS, worst case is 0.12A * 5V = 0.6 Watts. This is extremely low. Most dongles run at 0.3W, which is why they never get hot enough to throttle.

A critical page of the CX31993 datasheet shows the 20-pin QFN package (3mm x 3mm). Here’s the high-level grouping: Cx31993 Datasheet