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TLV61070A: 输入3.3V,设计5V输出,实际3.16V输出

Part Number: TLV61070A

你好,我们在使用TLV61070A这个芯片的时候,输入3.3V,设计输出5V,可实际输出3.16V,目前找不到问题所在。原理图设计如下:

  感量2.2uH.测量SW引脚无PWM波形。请帮忙分析一下是什么问题。输入3.3V正常。