LTC4421IUHE#TRPBF

OR Controllers, Ideal Diodes Overview

The LTC4421IUHE#TRPBF is a high-power prioritized PowerPath controller manufactured by Analog Devices Inc. It manages power distribution between multiple sources, such as an AC adapter and a battery, ensuring seamless transitions without interruption to the load. The device features integrated ideal diode controllers for low-loss rectification and load switch control. It operates within a supply voltage range of up to 28V and supports output currents up to 2A. The component is housed in a 36-lead WFQFN package with exposed pad, designed for surface mount applications.

OR Controllers, Ideal Diodes Feature Summary

• Prioritized PowerPath management for dual-source systems
• Integrated ideal diode controllers for efficient rectification
• Load switch control with fault protection capabilities
• Seamless source transition without load interruption

OR Controllers, Ideal Diodes Applications

• Laptop and notebook computer power management
• Portable electronic devices requiring dual power sources
• Industrial equipment with backup power requirements
• Telecommunications infrastructure power supplies

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix TRPBF indicates tape and reel packaging when ordering. Confirm that the IUHE designation corresponds to the industrial temperature grade and the HE package variant. Ensure compatibility with the intended PCB footprint for the 36-lead QFN package. Cross-reference the latest datasheet revision for any pinout or electrical characteristic updates before finalizing the design.

OR Controllers, Ideal Diodes Selection Notes

Select this component when designing systems requiring automatic prioritization between primary and backup power sources. It is suitable for applications needing low forward voltage drop across power paths. Consider the thermal performance of the exposed pad layout for heat dissipation. Evaluate the input voltage range against the available power sources to ensure operation within the specified limits.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LTC4421 family of PowerPath controllers from Analog Devices. It is designed to replace traditional diode ORing configurations, offering improved efficiency through active ideal diode control. The family targets portable electronics where battery life and power source reliability are critical. It integrates control logic for source selection and path management into a single compact solution.

OR Controllers, Ideal Diodes Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.