LP3470M5-4.38/NOPB

Supervisors Overview

The LP3470M5-4.38/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 an active-low open-drain output. The device provides a precise reset threshold voltage of 4.38 V with a fixed reset delay time of 2 ms. It supports surface-mount installation in a SOT-23-5 package and functions reliably across a temperature range from -20°C to +85°C.

Supervisors Feature Summary

• Provides active-low reset signal generation when monitored voltage drops below the specified threshold
• Features a fixed 2 ms reset delay time for consistent timing response
• Delivers high accuracy with a 1% reset threshold tolerance
• Operates without manual reset or watchdog timer functionality

Supervisors Applications

• Power-on reset circuits for microprocessors and digital logic
• Voltage supervision for battery-powered portable devices
• System reset management in embedded control applications

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications, as this part may be marked as not recommended for new designs. Ensure packaging specifications match project requirements before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a fixed 4.38 V threshold and 2 ms delay are required. Consider the SOT-23-5 package constraints and operating temperature limits. Evaluate if the absence of manual reset or watchdog features aligns with system design needs compared to alternative supervisory ICs.

Supervisors Part Context

This device belongs to the LP3470 series of ultra-low-power voltage supervisors. It shares functional similarities with other variants in the family but is distinguished by its specific 4.38 V threshold setting and commercial temperature rating. The series is designed for compact, cost-sensitive applications requiring reliable power monitoring.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs before considering alternative components.