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TPS54360: TPS54560烧坏

Part Number: TPS54360
Other Parts Discussed in Thread: TPS54560

Hi Ti工程师,

我在使用TPS54560作为降压一级电源时,输入24V,输出9V,但是经常出现烧坏的现象;后面是一个二级电源,是从9V转到5V,电流最大2A多一点,电路图和PCB如下,请帮忙看下:

现象:SW端信号反向过冲超限

电源拉载1A时SW波形如下:

电源拉载2A时 SW波形如下: