You have not said which library this part has come from of if you are talking about a Schematic Symbol or a PCB Footprint. Please read: [https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6](https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6) in particular then read (2.3) in (2) in that document. And also see: [https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6](https://easyeda.com/forum/topic/How-to-avoid-DRC-errors-when-connecting-to-PCB-Footprints-a-k-a-PCB-Libs-90bf944fe3644b21a7d27a9e9d8df8d6)

The LM5046 has a thermal pad which must be included as part of the PCB Footprint. The symbol and the PCB Footprints in the System library include this. Your user contributed symbols do not. * **_This is incorrect: please remove them and your cloned footprints!_** Please study the datasheet for this device very carefully: [http://www.ti.com/lit/ds/symlink/lm5046.pdf](http://www.ti.com/lit/ds/symlink/lm5046.pdf) Paying particular attention to: * 9 Power Supply Recommendations and 10 Layout on p37;  * Note 8 on the EXAMPLE BOARD LAYOUT diagram.

I CHECK THE datasheet and the LM5046 have 28 pin not 29 and the piece have 29 the name of pin useful is 29 EP, when try to convert my diagram have problem with this pin EP.

  [http://www.ti.com/lit/an/slma002h/slma002h.pdf](http://www.ti.com/lit/an/slma002h/slma002h.pdf) [http://www.ti.com/lit/an/slma004b/slma004b.pdf](http://www.ti.com/lit/an/slma004b/slma004b.pdf)