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1.如何获得VDD_3V3A?它是恒定的3.3V高还是可控逻辑?
2.当你说“由VDD_3V3A控制”时,你需要什么功能?
通常,当您移除R122时,TPS2051 EN引脚只能看到0.5xDD_3V3A。