LTC4251/LTC4251-1/ LTC4251-2 Negative Voltage Hot Swap Controllers in SOT-23 FEATURES n Allows Safe Board Insertion and Removal from a Live –48V Backplane n Floating Topology Permits Very High Voltage Operation n Programmable Analog Current Limit with Circuit Breaker Timer n Fast Response Time Limits Peak Fault Current n Programmable Timer n Programmable Undervoltage/Overvoltage Protection n Low Profile (1mm) ThinSOT™ Package APPLICATIONS n Hot Board Insertion n Electronic Circuit Breaker n –48V Distributed Power Systems n Negative Power Supply Control n Central Office Switching n Programmable Current Limiting Circuit n High Availability Servers n Disk Arrays DESCRIPTION The LTC®4251/LTC42...

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