LP3470M5X-2.93

Supervisors Overview

The LP3470M5X-2.93 is a voltage supervisor from Texas Instruments designed for monitoring power supply integrity in electronic systems. It features an active-low open-drain reset output triggered when the monitored input voltage drops below a precise threshold of 2.93 V, with a specified accuracy of 1%. The device supports a maximum supply voltage of 5.5 V and operates within a temperature range of -40°C to +85°C. It draws a typical quiescent current of 16 µA and utilizes an external capacitor on the delay pin to program the reset timeout period, which has a minimum specification of 2 ms.

Supervisors Feature Summary

• Provides precise voltage supervision with a 1% reset threshold tolerance
• Features an active-low open-drain reset output for microprocessor compatibility
• Allows programmable reset delay timing via an external capacitor
• Operates with ultra-low quiescent current consumption

Supervisors Applications

• Microprocessor system power-on reset generation
• Battery-powered equipment voltage monitoring
• Portable consumer electronics power management
• Industrial control board supervisory circuits

Supervisors Procurement Notes

Verify the specific suffix configuration against the manufacturer datasheet to ensure the correct threshold voltage and package variant are selected. Confirm RoHS compliance status and check for recommended new design (NRND) or obsolescence notices prior to finalizing procurement plans. Ensure the ordering part number matches the required operating temperature range and packaging format.

Supervisors Selection Notes

Select this component when a fixed low-voltage threshold near 3 V is required for single-supply monitoring applications. The device is suitable for designs prioritizing low static current over high-speed response times. Consider the external capacitor requirement for delay programming when evaluating board space constraints. Verify that the open-drain output interface aligns with the pull-up requirements of the connected logic circuitry.

Supervisors Part Context

This part belongs to the LP3470 family of tiny power-on reset circuits manufactured by Texas Instruments. The series is characterized by its small SOT-23-5 footprint and low power consumption profile. It serves as a fundamental building block for ensuring stable system initialization and protection against brown-out conditions in compact electronic assemblies.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers for this specific component were not identified in the provided documentation.