LTC4357IDCB#PBF

OR Controllers, Ideal Diodes Overview

The LTC4357IDCB#PBF is a positive high voltage ideal diode controller manufactured by Analog Devices Inc. It drives an external N-channel MOSFET to replace Schottky diodes, reducing power consumption and heat dissipation. The device operates within a wide input voltage range of 9V to 80V. It features a 0.5µs turn-off time to limit peak fault current during reverse conditions. The component ensures smooth switchover without oscillation and prevents reverse DC current flow. It is housed in a 6-lead DFN package.

OR Controllers, Ideal Diodes Feature Summary

• Drives external N-channel MOSFET to replace Schottky diodes for reduced power loss
• Limits peak fault current with fast 0.5µs turn-off response
• Ensures smooth switchover between power sources without oscillation
• Prevents reverse DC current flow from output to input

OR Controllers, Ideal Diodes Applications

• N + 1 redundant power supplies
• High availability systems
• AdvancedTCA systems
• Telecom infrastructure
• Automotive systems

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix #PBF indicates tube packaging versus #TRPBF for tape and reel when sourcing. Confirm the IDCB variant matches the required industrial temperature grade and DFN-6 footprint. Ensure the external MOSFET selection aligns with the 80V maximum rating and current requirements. Check RoHS compliance status through official manufacturer documentation prior to final procurement decisions.

OR Controllers, Ideal Diodes Selection Notes

Select this controller for applications requiring high voltage operation up to 80V where low forward voltage drop is critical. The DFN-6 package suits space-constrained designs. Consider the 0.5µs fault protection speed for sensitive load protection needs. Verify that the external N-channel MOSFET parameters support the intended current and thermal loads for optimal efficiency.

OR Controllers, Ideal Diodes Part Context

This component belongs to the LTC4357 series of ideal diode controllers designed for high-voltage positive supply applications. It serves as a specialized PMIC solution for replacing passive rectification methods. The series supports various packages including DFN and MSOP to accommodate different board layout constraints and thermal management requirements across industrial and telecom sectors.

OR Controllers, Ideal Diodes Replacement Considerations

LTC4357HDCB#TRPBF

OR Controllers, Ideal Diodes FAQ

What is the function of the LTC4357IDCB#PBF?

It is a positive high voltage ideal diode controller that drives an external N-channel MOSFET to replace a Schottky diode.

Does the device allow reverse current flow?

No, the LTC4357 prevents reverse DC current flow from the output back to the input source.