LTC4415IMSE#TRPBF

The LTC4415 by LT is a dual monolithic PowerPath ideal diode solution designed for power supply ORing applications. Each ideal diode can supply up to 4A with a typical forward conduction resistance of 50mΩ. The device regulates diode voltage drops to 15mV during forward conduction at low currents, which helps extend the power supply operating range and ensures smooth switchover during supply changes.

The two ideal diodes are independently controlled via EN1 and EN2 inputs, allowing for prioritization. The output current limits are adjustable from 0.5A to 4A for each diode using resistors on the CLIM pins, and ideal diode currents can be monitored via CLIM pin voltages. Status pins indicate when the diodes are forward conducting, while warning pins signal when the die temperature approaches thermal shutdown or if the output load exceeds the current limit threshold.

This component is suitable for applications such as prioritized power supply ORing, battery and wall adapter diode ORing, backup battery diode ORing, supercapacitor ORing, and multiple battery sharing. It operates within a 1.7V to 5.5V range and is available in a thermally enhanced 16-lead MSOP and DFN package.

The LTC4415 offers features like soft-start to limit inrush current, precision enable thresholds for switchover control, and load current monitoring. Its low reverse leakage current of less than 1µA makes it well-suited for various power management scenarios.