LP2989AIMX-1.8

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Overview

The LP2989AIMX-1.8/NOPB is a fixed-output linear low-dropout regulator manufactured by Texas Instruments, providing a stable 1.8V output with a maximum current capacity of 500mA. It operates within an input voltage range up to 16V and features a typical dropout voltage of 0.65V at full load. The device incorporates comprehensive protection mechanisms including overcurrent limiting, thermal shutdown, and short-circuit protection. Designed for surface-mount applications, it utilizes an 8-SOIC package and supports an operating temperature range from -40°C to 125°C.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Feature Summary

• Integrated enable control functionality for power management
• Built-in overcurrent, thermal shutdown, and short-circuit protection circuits
• Low noise performance suitable for sensitive analog loads

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Applications

• Portable battery-powered equipment requiring efficient voltage regulation
• Wireless communication systems needing low-noise power supplies
• Embedded microcontroller logic supply rails

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Procurement Notes

Verify the complete part number suffix, specifically /NOPB, to confirm lead-free compliance and RoHS status. Ensure the 'MX' designation matches the required SOIC tape-and-reel packaging format rather than tube packaging. Cross-reference the specific output voltage code (1.8) against the target circuit requirements to prevent mismatch errors during procurement.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Selection Notes

Select this component when a fixed 1.8V rail is required with moderate current demands up to 500mA. The wide input voltage capability allows compatibility with various source voltages. Consider the 8-SOIC footprint for PCB layout constraints. Verify that the thermal dissipation in the application environment remains within the specified junction temperature limits under maximum load conditions.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Part Context

This device belongs to the LP2989 family of micropower LDO regulators designed for applications with output voltages below 2V. It serves as a high-performance alternative to older generation regulators, offering improved line and load regulation characteristics. The series is widely utilized in consumer electronics and industrial control systems where space efficiency and reliability are critical design factors.

Voltage Regulators - Linear, Low Drop Out (LDO) Regulators Replacement Considerations

LP2989AIM-1.8/NOPB is documented as a parameter-equivalent substitute.