Linear Technology LTC4352IDD#PBF

Description
The LTC4352 is a low voltage ideal diode controller that uses an external N-channel MOSFET to create a near-ideal diode. It replaces high power Schottky diodes and heat sinks, saving power and board area. The ideal diode function enables low loss power ORing and supply holdup applications. The LTC4352 regulates the forward voltage drop across the MOSFET to ensure smooth current transfer in diode-OR applications. Fast turn-on and turn-off times minimize load voltage droop and reverse currents. The controller operates with supplies from 2.9V to 18V. It features undervoltage and overvoltage protection, open MOSFET detection, status and fault outputs, and hot swappability.

Features
Low loss replacement for power diode
Controls N-channel MOSFET
OV to 18V supply ORing or holdup
0.5μs turn-on and turn-off time
Undervoltage and overvoltage protection
Open MOSFET detect
Status and fault outputs
Hot swappable
Reverse current enable input
12-pin MSOP and DFN (3mm x 3mm) packages

Applications
Redundant power supplies
Supply holdup
Telecom infrastructure
Computer systems and servers