LM3880MFX-1AF/NOPB

Power Supply Controllers, Monitors Overview

The LM3880MFX-1AF/NOPB is a simple power sequencer manufactured by Texas Instruments, designed for monitoring and sequencing multiple voltage rails. It operates within a supply voltage range of 2.7V to 5.5V and features an open-drain output type with a threshold voltage of 1.25V. The device includes three monitored inputs and provides a fixed reset delay time of 16ms. It does not support manual reset or watchdog functions. The component is housed in a SOT-23-6 package and supports surface mount installation. It is rated for operation between -40°C and +125°C.

Power Supply Controllers, Monitors Feature Summary

• Provides automated sequencing for up to three independent power rails
• Features a fixed internal reset delay timer for controlled power-up timing
• Utilizes low quiescent current consumption for efficient power management

Power Supply Controllers, Monitors Applications

• Power sequencing in embedded systems
• Voltage rail monitoring in industrial equipment
• Power management in automotive electronics

Power Supply Controllers, Monitors Procurement Notes

Verify the specific suffix '1AF' against official Texas Instruments documentation to confirm exact pinout and functional configuration. Ensure the ordering part number matches the required package style and temperature rating. Cross-reference the datasheet revision date to ensure compatibility with current design specifications. Confirm RoHS compliance status through the manufacturer's official product data sheet before finalizing procurement.

Power Supply Controllers, Monitors Selection Notes

Select this component when a fixed-time delay sequencer is sufficient for the application requirements. Consider the LM3880 series if monitoring three distinct voltage rails is necessary. Evaluate the SOT-23-6 package constraints against available PCB space. Verify that the 1.25V threshold voltage aligns with the monitored rail levels. Check if the absence of a manual reset function meets the system safety protocols.

Power Supply Controllers, Monitors Part Context

The LM3880 belongs to Texas Instruments' family of simple power sequencers and supervisory circuits. This series is designed to manage power-up and power-down sequences in complex electronic systems. The LM3880 variant specifically focuses on providing reliable monitoring for multiple rails without requiring external timing components, simplifying the overall circuit design.

Power Supply Controllers, Monitors Replacement Considerations

Consult the official Texas Instruments substitution guide for verified alternatives. Compare electrical parameters such as threshold voltage and operating temperature range. Ensure any substitute maintains the same package footprint and pin configuration.