I am supplying a TC4420 gate driver (https://bit.ly/2RiKnXZ) with a pulse from a signal generator at 1,440 hz. The problem is I can't get the gate driver much over 5v without it getting quite warm (105^F). The current draw from the bench supply at 5.25v is 115mA. The gate driver is rated at max 18v and 6A so I though I would be able to put more power into it. I'm connecting the circuit as shown in the attached diagram.