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关于TPS2010A 关断问题

Other Parts Discussed in Thread: LM358

做按键控制电源电路是用到这个芯片

但是当en给高电平(也就是禁止输出的时候)的时候,却发现还是有0.5V左右的电压存在,这个 是怎么回事?

有遇到的么?