LP3470IM5-2.63/NOPB

Supervisors Overview

The LP3470IM5-2.63/NOPB 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 a precise reset threshold of 2.63 V with 1% accuracy. The device utilizes an active-low, open-drain output to signal reset conditions when the monitored input drops below the threshold. It incorporates a fixed reset delay time of 2 ms and functions reliably across a temperature range from -40°C to +85°C. The component is housed in a compact SOT-23-5 surface-mount package.

Supervisors Feature Summary

• Provides active-low reset signaling via an open-drain output when supply voltage falls below the specified threshold.
• Features a fixed internal reset delay timer to ensure stable system initialization without external timing components.
• Delivers high precision voltage monitoring with a 1% reset threshold accuracy for reliable supervision.
• Operates with low quiescent current suitable for battery-powered or energy-efficient applications.

Supervisors Applications

• Monitoring microprocessor and microcontroller power rails during startup and operation.
• Supervising battery-powered devices to prevent malfunction due to low voltage conditions.
• Ensuring system stability in industrial control equipment through reliable voltage oversight.

Supervisors Procurement Notes

Verify the exact suffix and tolerance specifications against the manufacturer's datasheet before procurement, as minor variations exist within the LP3470 family. Confirm that the SOT-23-5 package aligns with your PCB footprint requirements. Check for end-of-life status or recommended new designations, as availability may vary. Ensure compatibility with your system's voltage levels and operating temperature range. Validate RoHS compliance if required by your manufacturing standards.

Supervisors Selection Notes

Select this component when a fixed 2.63 V threshold is required for precise voltage supervision. Consider the SOT-23-5 package size constraints and the active-low open-drain output configuration. Evaluate the -40°C to +85°C operating range against environmental conditions. Compare the 1% threshold accuracy against other available options to ensure sufficient precision for the application. Assess the fixed delay time suitability for the target system's startup sequence requirements.

Supervisors Part Context

The LP3470 series consists of tiny power-on-reset circuits designed for voltage supervision. This specific variant, LP3470IM5-2.63/NOPB, belongs to the industrial grade subset, indicated by the wider temperature range compared to commercial variants. It shares functional similarities with other LP3470 models but differs in its specific reset threshold voltage. The series is known for low power consumption and compact packaging, making it suitable for space-constrained designs.

Supervisors Replacement Considerations

LP3470IM5-2.63/NO is a direct equivalent part number variant. LP3470M5-2.63/NOPB represents the commercial temperature grade version of the same electrical specification. Verify pinout and package compatibility when substituting with these alternatives. Ensure the replacement matches the required operating temperature range for the specific application environment.