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Micropower Hot Swap Controller

The LTC4231 Hot Swap™ controller delivers a micropower solution for safe insertion and removal of boards and batteries in energy conscious applications. Device IQ (quiescent current) is a mere 4μA while a strobed ground reduces the input voltage divider current by 50x. The system is completely protected against battery deep discharge, output overload or short-circuit, overvoltage and reverse battery connection. Placing the LTC4231 in shutdown mode reduces its IQ to 0.3μA and turns off the external N-channel power MOSFETs to disconnect downstream circuits, extending battery standby time.

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