LP2986IMX-5.0 Linear Voltage Regulator: Equivalent & Substitute Parts

Part Overview

The LP2986IMX-5.0 is a linear voltage regulator IC from Texas Instruments designed for power management applications. It delivers a fixed 5V output at 200mA with a maximum dropout voltage of 0.35V, making it suitable for low-power embedded systems and portable devices. The device integrates over-current, over-temperature, and short-circuit protection features. The main part is currently in Last Time Buy status, necessitating identification of active equivalent alternatives for continued design support and procurement.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	200mA
Maximum Input Voltage	16V
Dropout Voltage (Max)	0.35V @ 200mA
Quiescent Current	120 µA
PSRR	65dB (1kHz)
Package	8-SOIC (0.154", 3.90mm Width)
Operating Temperature Range	-40°C ~ 125°C
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable

Substitute Part Grouping Explanation

Substitution eligibility for the LP2986IMX-5.0 is determined by strict parametric equivalence across the following criteria:

Fixed output voltage of 5V
Output current rating of 200mA
Maximum input voltage of 16V
Dropout voltage of 0.35V @ 200mA
Quiescent current of 120 µA
PSRR of 65dB (1kHz)
8-SOIC package configuration (0.154", 3.90mm Width)
Operating temperature range of -40°C ~ 125°C
Identical protection features (Over Current, Over Temperature, Short Circuit)
Enable control feature

All identified substitute parts meet these parameters without exception. Substitution is valid based on electrical and mechanical compatibility alone.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	PSRR	Package	Operating Temp	Product Status	Inventory
LP2986IMX-5.0	Texas Instruments	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	Last Time Buy	4004 Pcs
LP2986AIMX-5.0/NOPB	National Semiconductor	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	Active	2100 Pcs
LP2986IMX-5.0/NOPB	Texas Instruments	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	Active	4004 Pcs
LP2987AIMX-5.0/NOPB	National Semiconductor	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	Active	3700 Pcs
LP2987IMX-5.0/NOPB	National Semiconductor	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	Active	3700 Pcs
LP2988IMX-5.0/NOPB	Texas Instruments	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	Active	2100 Pcs

Engineering Selection Recommendations

All substitute parts listed maintain full parametric equivalence with the LP2986IMX-5.0. Selection should be based on the following factors:

Product Status: The main part LP2986IMX-5.0 is in Last Time Buy status. All substitute parts are in Active status, ensuring long-term availability and continued manufacturing support.

Compliance & Certifications: All parts are ROHS3 compliant and REACH unaffected. Moisture Sensitivity Level (MSL) is rated at 1 (Unlimited) across all variants, indicating no moisture-related handling restrictions.

Packaging Variants: LP2986IMX-5.0/NOPB and LP2988IMX-5.0/NOPB are supplied in Tape & Reel (TR) packaging. LP2986AIMX-5.0/NOPB, LP2987AIMX-5.0/NOPB, and LP2987IMX-5.0/NOPB are supplied in Bulk packaging. Selection between packaging types depends on procurement volume and assembly line requirements.

Inventory Availability: Current stock levels range from 2100 to 4004 units across all variants, supporting immediate procurement needs.

Frequently Asked Questions (FAQ)

Q: Can LP2986AIMX-5.0/NOPB replace LP2986IMX-5.0 in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The primary difference is the packaging format (Bulk vs. standard) and manufacturer designation. No circuit modifications are required.

Q: What is the difference between LP2986 and LP2987 variants?

A: Within the provided parameters, LP2986 and LP2987 variants are parametrically equivalent. Both deliver 5V at 200mA with identical dropout voltage, quiescent current, and PSRR specifications. Selection between variants depends on availability and procurement preferences.

Q: Are LP2988IMX-5.0/NOPB and LP2986IMX-5.0 interchangeable?

A: Yes. Both parts meet all specified electrical and mechanical parameters. The LP2988 variant is in Active status, making it suitable for long-term production use as the LP2986 approaches end-of-life.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Bulk packaging formats contain identical die and internal circuitry. Packaging selection is determined by assembly process requirements and volume considerations only.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry RoHS3 compliance certification, meeting environmental and regulatory requirements for commercial and industrial applications.

Q: What is the significance of the /NOPB suffix?

A: The /NOPB designation indicates lead-free (Pb-free) packaging, confirming RoHS3 compliance. Parts with this suffix are suitable for applications requiring lead-free components.

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