LP3470IM5-4.8/NOPB

Supervisors Overview

The LP3470IM5-4.8/NOPB is a voltage supervisory circuit manufactured by Texas Instruments, originally from National Semiconductor. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 4.8 V. The device provides an active low, open-drain reset output with a typical reset delay time of 2 ms. It is housed in a SOT-23-5 surface-mount package and supports a maximum operating temperature of 85°C.

Supervisors Feature Summary

• Provides power-on reset functionality with a fixed threshold voltage
• Features an active low, open-drain output configuration
• Designed for compact applications using a small SOT-23-5 package

Supervisors Applications

• Embedded systems requiring power supervision
• Microcontroller reset circuits
• Portable electronic devices

Supervisors Procurement Notes

Verify the manufacturer designation as Texas Instruments, which acquired National Semiconductor. Confirm the specific suffix indicates the 4.8V threshold variant. Check RoHS compliance status and ensure the component meets current environmental regulations for your region before finalizing procurement.

Supervisors Selection Notes

Select this component when a fixed 4.8V threshold is required for system monitoring. Ensure the application does not need manual reset or watchdog timer functions, as this part lacks those features. Verify that the open-drain output type matches the input requirements of the downstream logic or microcontroller reset pin.

Supervisors Part Context

This part belongs to the LP3470 family of tiny power-on reset circuits. It shares the same functional architecture as other variants in the series, differing primarily in the preset threshold voltage value. The family is designed for simple voltage supervision tasks in space-constrained designs.

Supervisors Replacement Considerations

Direct substitutes include other LP3470 variants with different threshold voltages if the 4.8V requirement can be adjusted. Cross-referencing with similar single-channel supervisors from other manufacturers requires verifying package compatibility and electrical parameter alignment.