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Short Circuit or Input Back Protected Circuit Operating Only

2016-09-22 18:58  
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Short Circuit or Input Back Protected Circuit Operating Only When Input Voltaged is Provided
The circuit is protected from short circuit and input back. If the inductance value chosen will not be supersaturated, reducing voltage stabilizer LT3481 is able to withstand short cut of the output. But here’s another condition in the system to consider, that is when LT3481 has no input, the output will still maintain a high level. When the battery is charging or in battery backup systems, it may happen if the battery or any other power supply is connected with LT3481 by diode or (OR). If the end FIN is allowed to float, and end RUN / SS is connected with end VIN by a logic signal while keeping high level, the static current in internal circuit of LT3481 will be drawn through the end SW.