LP3470A263DBVR

Supervisors Overview

The LP3470A263DBVR is an ultra-low-power voltage supervisory circuit manufactured by Texas Instruments. It features a fixed reset threshold of 2.63 V with 1% accuracy over temperature. The device operates within a supply voltage range up to 5.5 V and draws a typical quiescent current of 350 nA. It utilizes a 5-pin SOT-23 package and provides an active-low, open-drain RESET output. The reset time-out period is programmable via an external capacitor.

Supervisors Feature Summary

• Ultra-low power consumption with 350 nA quiescent current
• High precision voltage monitoring with 1% accuracy over temperature
• Programmable reset delay using an external capacitor
• Pin-to-pin compatible with the legacy LP3470 series

Supervisors Applications

• Portable battery-powered equipment requiring minimal standby current
• Microprocessor and microcontroller system supervision
• Battery backup switching circuits
• Wearable electronics and IoT devices

Supervisors Procurement Notes

Verify the specific suffix DBVR indicates the reel packaging format when ordering. Confirm that the 263 designation corresponds to the 2.63 V threshold requirement for your design. Check for end-of-life or not-recommended-for-new-designations if sourcing for long-term production. Ensure compatibility with existing PCB footprints designed for the original LP3470 due to pin-to-pin equivalence.

Supervisors Selection Notes

Select this component when precise voltage monitoring at low thresholds is required alongside minimal power draw. The 2.63 V threshold suits applications where the monitored rail operates near this level. The programmable delay allows customization for system startup stability. Consider the SOT-23-5 package constraints for space-limited designs. Verify that the open-drain output interface matches the receiving logic input requirements.

Supervisors Part Context

This part belongs to the LP3470A family of ultra-low-power voltage supervisors from Texas Instruments. It serves as a direct replacement for the standard LP3470 series, offering improved accuracy and lower power consumption while maintaining physical compatibility. The A-series designation typically denotes enhanced performance specifications such as tighter tolerance and reduced quiescent current compared to the base model.

Supervisors Replacement Considerations

The LP3470M5-2.63/NOPB is a pin-compatible alternative within the same product family. Both parts share the SOT-23-5 package and similar functional outputs. Verify that the reset delay characteristics and exact quiescent current values meet the specific application needs before substituting.