LP3470M5-3.08

Supervisors Overview

The LP3470M5-3.08/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 fixed reset threshold voltage of 3.08 V with 1% accuracy. The device provides an active-low, open-drain output signal triggered when the monitored input drops below the threshold. It includes a fixed reset delay time of 2 ms and supports surface-mount installation in a SOT-23-5 package. The component functions without manual reset or watchdog timer capabilities.

Supervisors Feature Summary

• Provides precise voltage supervision with a fixed 1% accurate reset threshold to ensure reliable system initialization.
• Generates an active-low reset signal via an open-drain output interface when supply voltage falls below the set limit.
• Incorporates a fixed internal reset delay to prevent false triggering during transient power fluctuations.

Supervisors Applications

• Monitoring microprocessor power rails for proper system startup sequences
• Supervising battery-powered devices to detect low-voltage conditions
• Ensuring stable operation in embedded control circuits

Supervisors Procurement Notes

Verify the specific suffix (NOPB) confirms RoHS compliance and lead-free status as per manufacturer specifications. Confirm the exact threshold voltage matches the design requirement, as the LP3470 family offers multiple fixed options. Check current lifecycle status, as this part may be marked as Not Recommended for New Designs (NRND), requiring validation of long-term availability or approved alternates before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 3.08 V threshold is required for single-input voltage monitoring. Ensure the application does not need manual reset functionality or watchdog timers, as these are absent. Verify that the SOT-23-5 package fits the PCB layout constraints. Consider the 2 ms fixed delay against system timing requirements; if programmable delay is needed, explore other variants in the series.

Supervisors Part Context

This device belongs to the LP3470 series of ultra-low-power reset ICs from Texas Instruments. It is functionally related to the LP3470A series but differs in operating temperature range and maximum supply voltage specifications. The M5 suffix indicates the SOT-23-5 package type, distinguishing it from other form factors like DBVR available in the broader product line.

Supervisors Replacement Considerations

Direct substitutes include LP3470IM5-3.08/NOPB. Parameter-equivalent alternatives such as LP3470IM5X-3.08/NOPB may also serve as replacements depending on packaging preferences.