Hi I am using TPS54329DDAR,TPS62130ARGTR,TPS53318DQPR in my design.The 12V from the PSU feeds the POLs (Point of Loads) for the lower voltage sources (5V, 3.3V, 2.5V) using TPS54329DDAR,TPS62130ARGTR,TPS53318DQPR. I would like to know if the above devices are certified by Underwriters Laboratories (UL) or Canadian Standards Association (CSA))as apart of power supply safety standards.