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TPS63020不能正常工作



使用3.3V输出典型电路。未接负载情况下,在输入2.75-5.5V区间,输出为2-2.7V。偶尔会出现输出一直比输入高的情况。

PG引脚输出为低,反馈脚电压0.3-0.4V左右。

感觉反馈没有起作用。不知道各位同志有没有碰到过这种现象,欢迎指导!