LP3470IM5X-4.63

Supervisors Overview

The LP3470IM5X-4.63 is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring power supply integrity in electronic systems. It operates within a maximum supply voltage of 5.5 V and features an active low, open-drain output type. The device provides a fixed reset threshold voltage of 4.63 V with 1% accuracy. It includes a programmable reset delay time of 2 ms, adjustable via an external capacitor. The component supports surface mount installation in a SOT-23-5 package and functions across a temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides precise voltage supervision with a fixed 4.63 V threshold and 1% accuracy
• Features an active low, open-drain output for direct interface with digital logic
• Includes a programmable reset delay controlled by an external capacitor

Supervisors Applications

• Power-on reset generation for microprocessors and microcontrollers
• Voltage monitoring for battery-powered portable devices
• Supervision of logic supply rails in embedded systems

Supervisors Procurement Notes

Verify the specific suffix 'IM5X' against the manufacturer's current datasheet to confirm pinout compatibility and package dimensions. Confirm RoHS compliance status as indicated by the '/NOPB' designation if present in your specific ordering code. Check for obsolescence notices or recommended new designations, as older variants may be marked as not recommended for new designs. Ensure the external capacitor selection aligns with the required reset delay specifications.

Supervisors Selection Notes

Select this component when a fixed 4.63 V threshold is required for system supervision. The open-drain output allows for flexible interfacing with various logic families. Consider the external capacitor requirement for setting the reset delay, which adds minimal bill-of-materials cost but increases board space. Verify that the operating temperature range meets the environmental requirements of the target application.

Supervisors Part Context

This part belongs to the LP3470 family of ultra-low-power voltage supervisors. The family offers various fixed threshold voltages to accommodate different supply rail standards. The IM5X suffix typically denotes a specific tape-and-reel packaging variant for automated assembly. The device is designed to replace older supervisor ICs with improved accuracy and lower power consumption characteristics.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer's official replacement guide for potential cross-references.