Be aware that while this part is called SI4447ADY, its specs are very different from SI4447ADY from Vishay, actually it's quite a bit beefier, with 4x lower R
DSon, 2x current rating and 2.5x gate charge

. VBsemi is strange with their component naming, from what I've seen their parts often are significantly different from same part numbers of western brands. Like they have some component to sell and they just slap western part numbers without bothering if it's specs are actually similar.