This EVM comes with UCC12050DVE installed in the U1 reference designator position. Any of the alternate versions listed in Table 1-1 can be exchanged in place of UCC12050DVE. If U1 replacement is required, it is recommended to always use best practice soldering techniques. This can include taking appropriate ESD precautions and having qualified personnel, skilled at surface mount soldering and board level rework, removing and installing U1. Visually verify the desired UCC120xy component version is properly installed in the EVM. If rework on U1 has previously been performed, visually verify correct orientation of U1 according to Figure 3-2. The pin 1 locating dot on top of the IC package should be oriented at the top left according to Figure 3-2.