LTC4420IDD#TRPBF

OR Controllers, Ideal Diodes Overview

The LTC4420IDD#TRPBF is a dual-input monolithic PowerPath prioritizer manufactured by Analog Devices Inc. It provides backup switchover functionality to maintain critical circuit operation during brownout and power loss conditions. The device operates within an input voltage range of 1.8V to 18V and features low operating current characteristics. Unlike diode-OR products, it draws minimal current from inactive supplies even when their voltage exceeds that of the active supply. The component is housed in a 12-pin DFN EP package suitable for surface mount applications.

OR Controllers, Ideal Diodes Feature Summary

• Dual-input architecture with automatic prioritization logic
• Low quiescent current consumption for efficiency
• Minimal reverse current draw from inactive power sources

OR Controllers, Ideal Diodes Applications

• Backup switchover for critical embedded systems
• Brownout protection circuits
• Power loss detection and handling

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging configuration. Confirm the 12-pin DFN EP package type matches the target PCB footprint requirements. Ensure the 1.8V to 18V input voltage range aligns with the system's power rails. Check RoHS compliance status if required by manufacturing standards.

OR Controllers, Ideal Diodes Selection Notes

Select this component when dual-source power redundancy is required without significant voltage drop penalties associated with traditional diode OR-ing. Consider the low operating current requirement for battery-backed or energy-constrained designs. Evaluate the thermal performance within the DFN EP package for the expected load conditions.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LTC4420 series of PowerPath controllers designed for high-efficiency power management. It serves as a specialized solution for maintaining system uptime during primary power failures. The design integrates priority determination logic to seamlessly switch between available power sources.

OR Controllers, Ideal Diodes Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.