LP3470IM5X-2.83/NOPB

Supervisors Overview

The LP3470IM5X-2.83/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring single power supply rails. It features an active-low open-drain reset output with a fixed threshold of 2.83 V and a programmable delay ranging from 1 ms to 64 s. The device operates within a supply voltage range of 1.6 V to 5.5 V, drawing a typical quiescent current of 16 µA. It is housed in a compact SOT-23-5 package and supports operation across industrial temperature ranges.

Supervisors Feature Summary

• Ultra-low power consumption suitable for battery-operated applications
• Programmable reset delay timer for flexible system timing control
• High accuracy reset threshold ensures reliable voltage supervision

Supervisors Applications

• Portable electronic devices requiring low standby current
• Embedded systems needing precise power-on reset sequencing
• Battery-powered equipment with strict power management requirements

Supervisors Procurement Notes

Verify the specific suffix and tolerance against the official datasheet to ensure the correct threshold voltage. Confirm that the SOT-23-5 package matches your PCB footprint constraints. Check for any recent product change notifications or lifecycle status updates from Texas Instruments prior to finalizing procurement orders.

Supervisors Selection Notes

Select this component when a fixed 2.83 V threshold is required for the monitored rail. Consider the programmable delay feature if system startup timing needs adjustment beyond standard fixed delays. Ensure the operating voltage range covers the minimum and maximum supply levels expected in the target application environment.

Supervisors Part Context

This part belongs to the LP3470 family of tiny power-on reset circuits. It shares functional similarities with other LP3470 variants but differs in its specific reset threshold voltage. The family is characterized by low power usage and small form factors, making it common in space-constrained portable electronics.

Supervisors Replacement Considerations

Direct substitutes include other LP3470 variants with different threshold voltages if the 2.83 V requirement can be adjusted. Cross-reference with LP3470A series parts for potential upgrades in accuracy or feature sets, ensuring pin compatibility and electrical specifications align with the original design.