LTC4353CDE#PBF

OR Controllers, Ideal Diodes Overview

The LTC4353CDE#PBF is a dual low voltage ideal diode controller manufactured by Analog Devices Inc. It controls external N-channel MOSFETs to implement an ideal diode function, replacing high-power Schottky diodes and associated heat sinks to save power and board area. The device operates with supplies from 2.9V to 18V and features fast turn-on and turn-off times of 1µs to minimize load voltage droop and reverse-current transients during supply switchover or failure. It includes enable inputs for low current states and MOSFET on-status outputs.

OR Controllers, Ideal Diodes Feature Summary

• Controls external N-channel MOSFETs to implement ideal diode functionality
• Regulates forward-voltage drop for smooth current transfer in diode-or applications
• Fast gate turn-on and turn-off times reduce transient effects
• Includes enable inputs and status outputs for system control

OR Controllers, Ideal Diodes Applications

• Redundant power supplies
• Supply holdup systems
• High availability servers
• Telecom and network infrastructure

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. Ensure the component matches the DFN-12 package dimensions. Check RoHS compliance details via official documentation before integration.

OR Controllers, Ideal Diodes Selection Notes

Select this controller for low-loss power supply oring where Schottky diode losses are prohibitive. It requires external N-channel MOSFETs sized for the application current. Verify input voltage ranges between 2.9V and 18V suit the design. Consider thermal management requirements for the external MOSFETs rather than the IC itself.

OR Controllers, Ideal Diodes Part Context

This component belongs to the LTC4353 series of ideal diode controllers. It is part of Analog Devices' portfolio for power management ICs designed to improve efficiency in redundant power architectures. The device replaces traditional passive rectification methods with active MOSFET control.

OR Controllers, Ideal Diodes FAQ

What is the operating voltage range for the LTC4353?

The controller operates with supplies from 2.9V to 18V.

How does the LTC4353 handle supply switchover?

A fast turn-on reduces load voltage droop during supply switchover, while fast turn-off minimizes reverse-current transients if an input supply fails or shorts.