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LT4351 - MOSFET Diode-OR Controller

General Description

The LT®4351 creates a near ideal diode using external single or back-to-back N-channel MOSFETs.

This ideal diode function permits low loss ORing of multiple power sources.

Key Features

  • n Low Loss Replacement for ORing Diode in Multiple Sourced Power Supplies n External N-Channel MOSFETs for High Current Capability n Internal Boost Regulator Supply for MOSFET Gate Drive n Wide Input Range: 1.2V to 18V n Fast Switching MOSFET Gate Control n Input Under and Overvoltage Detection n STATUS and FAULT Outputs for Monitoring n Internal MOSFET Gate Clamp n Available in a 10-pin MSOP Package.

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FEATURES n Low Loss Replacement for ORing Diode in Multiple Sourced Power Supplies n External N-Channel MOSFETs for High Current Capability n Internal Boost Regulator Supply for MOSFET Gate Drive n Wide Input Range: 1.2V to 18V n Fast Switching MOSFET Gate Control n Input Under and Overvoltage Detection n STATUS and FAULT Outputs for Monitoring n Internal MOSFET Gate Clamp n Available in a 10-pin MSOP Package APPLICATIONS n Paralleled Power Supplies n Uninterrupted Supplies n High Availability Systems n N + 1 Redundant Power Supplies L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and PowerPath and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.