LP3470IM5-2.75/NOPB

Supervisors Overview

The LP3470IM5-2.75/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, designed for monitoring single-input power rails. It operates within a maximum supply voltage of 5.5 V and features an active-low, open-drain output type. The device provides a fixed reset threshold voltage of 2.75 V with 1% accuracy. It includes a programmable reset delay time of 2 ms and lacks manual reset, watchdog timer, or battery backup switching functions. The component is housed in a SOT-23-5 surface-mount package and supports operation across a temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides active-low reset signaling via an open-drain output interface
• Features a fixed 1% accurate reset threshold voltage for precise supervision
• Includes a programmable reset delay time to manage power-up sequencing

Supervisors Applications

• Power-on reset circuits for embedded systems
• Voltage supervision for microcontroller power rails
• Battery-powered device power management

Supervisors Procurement Notes

Verify the specific suffix and tolerance requirements against the official datasheet before procurement. Confirm that the SOT-23-5 package dimensions match the target PCB footprint. Ensure the operating temperature range meets the environmental specifications of the final application. Check for any recent lifecycle status updates from the manufacturer regarding availability or obsolescence.

Supervisors Selection Notes

Select this component when a single-channel voltage supervisor with a fixed low-voltage threshold is required. The 1% accuracy ensures reliable triggering near critical voltage levels. The absence of a watchdog timer simplifies design if external timing control is preferred. Verify that the open-drain output compatibility matches the downstream logic input requirements.

Supervisors Part Context

This part belongs to the LP3470 series of tiny power-on reset circuits from Texas Instruments. The series offers various fixed threshold voltages to accommodate different standard power rail levels. The IM5 suffix indicates the industrial temperature grade and SOT-23-5 packaging format. Other variants in the family share similar functional characteristics but differ in threshold settings and temperature ranges.

Supervisors Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the LP3470 family that match the 2.75 V threshold. Verify that any substitute maintains the same active-low open-drain output configuration and reset delay characteristics.