LP3470IM5-4.38

Supervisors Overview

The LP3470IM5-4.38 is a voltage supervisory circuit manufactured by Texas Instruments, designed as a tiny power-on reset IC. It features an active-low open-drain output and monitors a single input with a precise 1% reset threshold of 4.38 V. The device operates within a maximum supply voltage of 5.5 V and provides a fixed reset delay time of 2 ms. It is housed in a compact SOT-23-5 package suitable for surface-mount applications.

Supervisors Feature Summary

• Provides precise voltage monitoring with a 1% accuracy threshold
• Features an active-low open-drain output configuration
• Includes a programmable reset delay mechanism via external capacitor

Supervisors Applications

• Power-on reset circuits for embedded systems
• Voltage supervision for microprocessors and memory devices
• Battery-powered equipment requiring low quiescent current

Supervisors Procurement Notes

Verify the specific suffix and tolerance requirements against the official datasheet before procurement. Confirm that the operating temperature range and package type align with the design specifications. Ensure compatibility with the target system's voltage levels and reset timing constraints to avoid functional mismatches.

Supervisors Selection Notes

Select this component when a compact solution with high threshold accuracy is required for single-voltage monitoring. Consider the fixed 2 ms delay and active-low output characteristics during circuit design. Evaluate the SOT-23-5 package size constraints and ensure the external capacitor selection meets the desired reset timing requirements for the application.

Supervisors Part Context

This part belongs to the LP3470 family of ultra-low-power voltage supervisors from Texas Instruments. The series offers various threshold voltages and packaging options to suit different space and performance needs. The IM5 variant indicates industrial temperature range availability within the standard SOT-23-5 form factor.

Supervisors Replacement Considerations

The LP3470A438DBVR is a documented alternative within the same family offering similar functionality. Verify pinout compatibility and electrical parameter alignment before substitution.