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LM34927: 为什么SW电压会高于VIN 2~3V?

Part Number: LM34927


图中通道1为SW电压,通道2为VIN电压,为什么SW电压会高于VIN电源,原理图和参数跟规格书中提供的是一样的。换了探头、示波器及芯片都是一样的现象。