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电源隔离

Other Parts Discussed in Thread: TPS63002, TPS55010, SN6501, TPS732

你好:
我用tps63002做了一个5V稳压,问题有两个:1.功耗有点高,5V50毫安的输入带不动,芯片发热。2.我在输出端提供5V电压,在输入端有1.5V电压,我希望能做隔离,在输出端提供5V电压,输入端为0,以此判断正反插。可是这样不行。