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TPS61088: Vout(AC)波形的异常

Part Number: TPS61088

输入为3.3V输出期望为9V,在测量其输出波形时发现有异常,如图四所示,在波峰有一瞬间的电压下降,波谷则有一瞬间的电压上升,希望能够从PCB设计上找到造成这种问题的原因.