With the rapid intelligentzation of smart grid, power converters with higher performances and lower cost are necessarily required. Pulse Train (PT) controlled power converters have the advantages of fast response and simple structure, but are also suffered from undesired low frequency oscillation as operated in continuous conduction mode (CCM). In this paper, a PT controlled buck converter with dual output interfaces is newly proposed by introducing the coupled inductors. By adjusting the coupling coefficient and the second side voltage of the coupled inductor, the low-frequency oscillation of output voltage could be effectively suppressed. Experimental results are presented to validate the practicability of this new PT controlled converter.