LP3470M5X-4.38

Supervisors Overview

The LP3470M5X-4.38 is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring power supply integrity in electronic systems. It features an active-low open-drain output that asserts when the monitored input voltage drops below the specified threshold of 4.38 V. The device operates within a maximum supply voltage of 5.5 V and provides a 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 supervision with a fixed 1% reset threshold accuracy
• Features an active-low open-drain output for direct interface with digital logic
• Includes programmable reset delay functionality controlled by external capacitance

Supervisors Applications

• Microprocessor and microcontroller power-on reset circuits
• Battery-powered portable equipment voltage monitoring
• Embedded system supervisor circuits requiring low quiescent current

Supervisors Procurement Notes

Verify the exact suffix and manufacturer part number against official Texas Instruments documentation to ensure correct threshold voltage and package type. Confirm RoHS compliance status and check for obsolescence notices such as NRND status before procurement. Cross-reference distributor specifications with the original datasheet to validate electrical parameters and operating temperature ranges.

Supervisors Selection Notes

Select this component when a fixed 4.38 V threshold is required for single-input voltage monitoring. Ensure the application environment falls within the specified operating temperature range and that the SOT-23-5 package dimensions fit the PCB layout constraints. Consider the open-drain output configuration for compatibility with the target system's logic levels.

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 support diverse power management needs. The LP3470M5X variant specifically denotes the SOT-23-5 surface-mount package configuration with a fixed reset threshold.

Supervisors Replacement Considerations

LP3470M5-4.38/NOPB