LP3470M5X-2.63

Supervisors Overview

The LP3470M5X-2.63 is a voltage supervisor IC from Texas Instruments designed for monitoring single power supply rails. It features an active-low open-drain reset output with a fixed threshold of 2.63 V and 1% accuracy. The device includes a programmable delay timer, typically set to 2 ms or 1 ms depending on configuration, ensuring stable system initialization. Operating within a supply range up to 5.5 V, it draws only 16 uA of quiescent current. Packaged in a compact SOT-23-5 surface-mount case, it supports operation across industrial temperature ranges.

Supervisors Feature Summary

• Ultra-low power consumption with 16 uA operating current
• Fixed 1% accurate reset threshold at 2.63 V
• Active-low open-drain reset output
• Compact SOT-23-5 package for space-constrained designs

Supervisors Applications

• Portable battery-powered equipment requiring low standby current
• Microcontroller and FPGA power-on reset circuits
• Embedded systems with strict voltage supervision needs
• Industrial control modules operating in harsh environments

Supervisors Procurement Notes

Verify the exact suffix designation (e.g., M5 vs IM5) against the datasheet to confirm temperature grade and package variant. Confirm availability status as some variants may be marked Not Recommended for New Designs. Ensure the specific threshold voltage matches the target application requirements before ordering.

Supervisors Selection Notes

Select this component when a fixed 2.63 V threshold is required without external resistor programming. Compare against adjustable supervisors if flexibility is needed. Consider the 16 uA quiescent current impact on total system battery life. Verify that the active-low output logic aligns with the downstream controller's input requirements.

Supervisors Part Context

Part of the LP3470 family of tiny power-on reset circuits. Similar models include LP3470M5-4.63 and LP3470IM5-3.08/NOPB, offering different threshold voltages. The series provides reliable supervision for various digital logic families with minimal component count.

Supervisors Replacement Considerations

Public confirmed substitutes include TPS389001DSER. Verify pinout compatibility and electrical parameters such as reset threshold and quiescent current before substitution.