你这正好找中了一个内置开关的
再看看TPS40210这种的电路图

【 在 nlgdczm 的大作中提到: 】
: 啊？赶紧去TI随便找找了个boost converter TPS61022的EN，没细看。是不是这个boost的定义又跟“无症状”一样，实际上是不一样？
: When the voltage at the EN pin is below 0.4 V, the internal enable comparator turns the device into shutdown mode. In the shutdown mode, the device is entirely turned off. The output is disconnected from input power supply.
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