LP3470IM5X-4.38/NOPB

Supervisors Overview

The LP3470IM5X-4.38/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring single-input power supplies. It features an active-low open-drain output and operates within a maximum supply voltage of 5.5 V. The device provides a precise reset threshold of 4.38 V with 1% accuracy. Key electrical parameters include a reset delay time of 2 ms and a quiescent current of 16 uA. It functions reliably across a temperature range of -40°C to +85°C and is housed in a compact SOT-23-5 package.

Supervisors Feature Summary

• Provides active-low reset signal when monitored voltage drops below the specified threshold
• Features programmable reset delay time adjustable via external capacitor
• Offers high precision with 1% reset threshold accuracy
• Designed for ultra-low-power applications with minimal quiescent current consumption

Supervisors Applications

• Portable battery-powered equipment requiring low standby current
• Microprocessor and microcontroller system power supervision
• Wireless communication devices needing reliable power-on reset
• Automotive electronics operating in extended temperature ranges

Supervisors Procurement Notes

Verify the exact suffix 'M5X' indicates tape-and-reel packaging configuration distinct from standard tube variants. Confirm RoHS compliance status as 'NOPB' denotes lead-free and halogen-free construction. Check lifecycle status as some LP3470 variants are marked NRND; ensure availability aligns with long-term production plans. Validate that the 4.38V threshold matches specific circuit requirements before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a fixed 4.38V threshold is required for systems powered by 5.5V rails. Choose the M5X suffix for automated surface-mount assembly processes utilizing reel packaging. Consider the 16uA quiescent current for battery-sensitive designs where standby power conservation is critical. Ensure the SOT-23-5 footprint fits within the constrained PCB area constraints of the target application design.

Supervisors Part Context

This part belongs to the LP3470 family of tiny power-on reset circuits from Texas Instruments. The series offers various threshold voltages to accommodate different logic levels. The LP3470A variant provides enhanced performance with lower static current but higher max supply voltage. This specific model represents the standard industrial grade version optimized for cost-effective mass production in consumer electronics.

Supervisors Replacement Considerations

Direct pin-compatible substitutes include other LP3470 variants with adjusted thresholds or packaging options such as LP3470M5-4.38/NOPB. For upgraded performance, consider the LP3470A series which offers improved static current specifications while maintaining functional compatibility.