LTC4420CMSE#PBF

OR Controllers, Ideal Diodes Overview

The LTC4420CMSE#PBF is a dual-input monolithic PowerPath prioritizer manufactured by Analog Devices Inc. It operates within an input voltage range of 1.8V to 18V and utilizes a 12-pin MSOP EP package for surface-mount installation. The device features low operating current, enabling efficient power management during brownout and power loss conditions. Unlike standard diode-OR configurations, it minimizes current draw from inactive supplies even when their voltage exceeds that of the active supply. This component provides reliable backup switchover capabilities to maintain critical circuitry operation.

OR Controllers, Ideal Diodes Feature Summary

• Dual-input PowerPath prioritization with low operating current
• Backup switchover functionality for brownout and power loss protection
• Minimal current draw from inactive supplies regardless of voltage differential

OR Controllers, Ideal Diodes Applications

• Typical application circuits for prioritization with failsafe backup supply
• Battery backup systems with interface to low voltage logic

OR Controllers, Ideal Diodes Procurement Notes

Verify the specific suffix against official documentation, as packaging variations such as tube or tape-and-reel may exist within the same family. Confirm RoHS compliance status through the manufacturer's datasheet. Ensure the 12-pin MSOP EP package matches your PCB footprint requirements. Cross-reference the part number with authorized distributors to confirm availability in your region, as supply constraints may apply.

OR Controllers, Ideal Diodes Selection Notes

Select this component when designing systems requiring seamless transition between primary and backup power sources without significant voltage drop. It is suitable for applications where maintaining critical circuitry during power interruptions is essential. Consider its low quiescent current for battery-powered designs. Verify that the 1.8V to 18V input range covers all expected supply voltages in your system architecture.

OR Controllers, Ideal Diodes Part Context

This part belongs to the LTC4420 series of PowerPath controllers. It is designed to manage power flow between two inputs, ensuring continuous operation for sensitive electronics. The MSOP EP package offers a compact solution for space-constrained designs while providing thermal performance benefits through the exposed pad.

OR Controllers, Ideal Diodes Replacement Considerations

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