Other Parts Discussed in Thread: LM337
I am using a LM2677 on a new design and wanted to confirm that the “Thermal Pad” on a TO-263 (7) package should be connected to GND.
On any of the simple switchers I have run across so far this is the case and of you go to page 26 of the data sheet it looks like U1 has Pin 4 and the thermal pad both attached to GND. I searched the data sheet for any mention of what to do with the thermal pad (electrically speaking) and couldn’t find anything. Before I go ahead and order PC boards I just wanted TI’s final word on grounding the thermal pad.