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请教TI技术 TPS54560 发热严重 怎么解决

Other Parts Discussed in Thread: TPS54560

最近用TPS54560做了一个DCDC降压模块 48V输入 24V输出3A电流 效率我算过能达到88% SW输出波形也很漂亮,但是就是手放上去不到一分钟就烫手,请问大家是散热没处理好吗? 要怎么散热呢?是加散热片还是大面积铺地呢?谢谢!附加一句肖特基二极管用的4A的 电感 手头就一个1.5A的所以是不是电感电流小的问题?