LP3470M5X-4.63

Supervisors Overview

The LP3470M5X-4.63 is an active-low reset integrated circuit manufactured by Texas Instruments, designed for power supply monitoring applications. It features a fixed reset threshold voltage of 4.63 V with 1% accuracy and a programmable delay time adjustable via an external capacitor. The device operates within a supply voltage range up to 5.5 V and draws a typical quiescent current of 16 uA. It provides an open-drain output in a compact SOT-23-5 package, suitable for space-constrained designs requiring precise voltage supervision.

Supervisors Feature Summary

• Active-low reset signal generation triggered when supply voltage drops below the specified threshold
• Programmable reset delay time controlled by an external capacitor connected to the delay pin
• High precision reset threshold with 1% accuracy ensuring reliable voltage monitoring
• Ultra-low quiescent current consumption optimized for battery-powered systems

Supervisors Applications

• Microcontroller and processor power-on reset circuits
• Battery-operated devices requiring low standby current
• Portable electronics with limited board space
• Industrial control systems needing stable voltage supervision

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or TI direct channels. Confirm RoHS compliance status as some listings indicate non-compliance. Check lifecycle status since similar variants are marked as not recommended for new designs. Ensure ordering suffix matches required temperature grade and packaging format. Validate datasheet revision against current technical specifications before integration.

Supervisors Selection Notes

Select this variant when a fixed 4.63 V threshold is required rather than adjustable options. Compare with LP3470A series if higher operating temperatures or different input counts are needed. Consider external capacitor selection for precise delay timing based on application requirements. Evaluate package availability as SOT-23-5 may have limited stock compared to larger packages.

Supervisors Part Context

Part of the LP3470 family of tiny power-on reset circuits from Texas Instruments. Shares functional similarities with LP3470IM5-4.63/NOPB but differs in manufacturing lot and potential minor parameter variations. Related to LP3470M5-4.38/NOPB which offers a lower threshold voltage. Part of broader PMIC portfolio focusing on simple supervisory functions.

Supervisors Replacement Considerations

LP3470M5X-4.00/NOPB serves as a functional substitute with identical package and lower threshold voltage. TPS389001DSER is listed as an alternative from Texas Instruments with similar functionality. Verify pin compatibility and electrical parameters before substitution. No direct pin-for-pin replacement exists with identical threshold voltage in public documentation.