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TPS54260: TPS54260的输入电压超过37V时,输出和输入都消失了

Part Number: TPS54260

你好,我在使用TPS54260芯片时,参考推荐电路搭建了此电路,在测试中发现输入20V到36V之间是可以正常输出电压和电流,但是一旦电压加到37V以上时就会出现输出电压电流消失,输入电压也逐渐消失,不清楚是什么原因。