The MP2560 has a dedicated enable c

The MP2560 has a dedicated enable control pin
(EN). With high enough input voltage, the chip
can be enabled and disabled by EN which has
positive logic. Its falling threshold is a precision
1.2V, and its rising threshold is 1.5V (300mV
higher).
When floating, EN is pulled up to about 3.0V by
an internal 1μA current source so it is enabled.
To pull it down, 1μA current capability is needed.
When EN is pulled down below 1.2V, the chip is
put into the lowest shutdown current mode.
When EN is higher than zero but lower than its
rising threshold, the chip is still in shutdown
mode but the shutdown current increases
slightly.

結果 (中文) 1:

MP2560 有专门的启用控制销(EN)。与高足够的输入电压，芯片可以启用和禁用的 EN 已积极的逻辑。其下降的阈值是一种精度为 1.2 v 和其上升的阈值是 1.5 v (300mV更高)。当浮动，恩达拉关于由 3.0 v内部 1μA 电流源所以它启用。把它拉下来，需要 1μA 电流的能力。EN 被拉下了低于 1.2 v，芯片时，投入的最低关闭当前模式。EN 时高于零，但低于其不断上升的阈值，该芯片是仍然在关机模式，但关机电流增大略。

結果 (中文) 3:

但这样的牦牛вийшов新补丁（SUPEE - 7405），那么也许不збільшуватися此一小时不得的。