LTC4352IMS#TRPBF

The LTC4352IMS#TRPBF, manufactured by Analog Devices Inc. (formerly Linear Technology), is a low voltage ideal diode controller designed to create a near-ideal diode using an external N-channel MOSFET. This component serves as a low-loss replacement for traditional high power Schottky diodes and their associated heat sinks, thereby saving power and board space.

This ideal diode controller facilitates low-loss power ORing and supply holdup applications. It precisely regulates the forward voltage drop across the MOSFET, ensuring smooth current transfer in diode-OR configurations. With a fast turn-on time of 0.5μs, it minimizes load voltage droop during supply switch-overs, and a rapid turn-off time of 0.5μs minimizes reverse currents if the input supply fails or is shorted.

The LTC4352IMS#TRPBF operates with supply voltages ranging from 2.9V to 18V. It includes undervoltage and overvoltage protection, disabling power passage under such conditions. An open MOSFET detect circuit flags excessive voltage drop across the pass transistor, and a REV pin allows for reverse current enabling.

Available in 12-pin MSOP and 3mm x 3mm DFN packages, this controller is suitable for applications such as redundant power supplies, supply holdup, telecom infrastructure, and computer systems and servers.