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TPS54260: TPS54260上电烧毁问题,原因是什么呢?

Part Number: TPS54260

我使用TPS54260实现6--36V转5V设计,当我在输入加上36V时候,TPS54260会烧毁炸裂,此时电路实际是空载的。我把后级电路断开的。

我有尝试把电感加到22uh 开关频率放到1.4Mhz,但是依旧会存在炸裂情况,请问这是什么原因导致的呢?谢谢!