40098BDM

Overview

The LP2987IM-3.0/NOPB is a fixed-output linear low-dropout regulator manufactured by National Semiconductor, now part of Texas Instruments. It provides a stable 3V output with a maximum continuous current capability of 200mA. The device features a low quiescent current of 120 µA and supports an input voltage range up to 16V. It incorporates comprehensive protection mechanisms including overcurrent, thermal shutdown, and short-circuit protection. The component operates reliably within a temperature range of -40°C to 125°C and is housed in an 8-SOIC surface-mount package.

Feature Summary

• Integrated enable control for power management
• Built-in overcurrent and thermal protection circuits
• Low noise performance with high power supply rejection ratio

Applications

• Battery-powered portable electronic devices
• Embedded systems requiring stable logic supply voltages
• Microcontroller peripheral power regulation

Procurement Notes

Verify the manufacturer marking and date code against official Texas Instruments or National Semiconductor documentation. Ensure the suffix /NOPB indicates lead-free compliance if required by your assembly process. Confirm the 8-SOIC package dimensions match your PCB footprint specifications before finalizing procurement orders.

Selection Notes

Select this component when a fixed 3V rail is required with moderate load currents up to 200mA. Consider the 0.35V dropout voltage at full load to ensure sufficient input-to-output differential. Evaluate the 120 µA quiescent current impact on total system power consumption during active operation phases.

Part Context

This LDO belongs to the LP2987 series designed for efficient voltage regulation in space-constrained applications. The series offers various fixed output voltages to support different digital logic families. The transition from National Semiconductor to Texas Instruments maintains design continuity while updating manufacturing standards.

Replacement Considerations

Consult official datasheets for pin-compatible alternatives such as the LP2987IMX variants. Verify electrical parameter equivalence for input voltage range and output current capacity before substituting.