LP2986AIMX-5.0 Equivalent & Substitute Parts

Part Overview

The LP2986AIMX-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 is classified as obsolete, which necessitates identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for seamless design substitution.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	200mA
Input Voltage (Max)	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

Substitute parts for the LP2986AIMX-5.0 are qualified based on strict electrical and mechanical parameter matching:

Critical Matching Parameters:

Output voltage: 5V fixed
Output current capability: 200mA
Input voltage rating: 16V maximum
Dropout voltage: 0.35V @ 200mA
Package type: 8-SOIC with identical 0.154" (3.90mm) width
Operating temperature range: -40°C ~ 125°C
Protection features: Over Current, Over Temperature, Short Circuit
Control features: Enable function

All identified substitutes maintain these specifications without deviation. Differences in product status (active vs. obsolete), packaging format (bulk vs. tape & reel), and RoHS compliance are noted but do not affect electrical interchangeability.

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	PSRR	Package	Operating Temp	Inventory
LP2986AIMX-5.0	Texas Instruments	Obsolete	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	5967 Pcs
LP2986AIMX-5.0/NOPB	National Semiconductor	Active	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	2100 Pcs
LP2986IMX-5.0/NOPB	Texas Instruments	Active	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	4004 Pcs
LP2987AIMX-5.0/NOPB	National Semiconductor	Active	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	3700 Pcs
LP2987IMX-5.0/NOPB	National Semiconductor	Active	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	3700 Pcs
LP2988IMX-5.0/NOPB	Texas Instruments	Active	5V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-SOIC	-40°C ~ 125°C	2100 Pcs

Engineering Selection Recommendations

All identified substitute parts are electrically and mechanically equivalent to the LP2986AIMX-5.0. Selection among alternatives should be based on the following factors:

Product Status: The LP2986AIMX-5.0 is obsolete. All substitute parts listed are active products with ongoing manufacturer support and availability.

RoHS Compliance: LP2986IMX-5.0/NOPB and LP2988IMX-5.0/NOPB are ROHS3 compliant. The original part and National Semiconductor variants do not carry RoHS3 certification. For applications requiring RoHS compliance, Texas Instruments active variants are preferred.

Packaging Format: LP2986IMX-5.0/NOPB and LP2988IMX-5.0/NOPB are supplied in Tape & Reel format, suitable for automated assembly. National Semiconductor variants are supplied in bulk packaging. Packaging selection depends on manufacturing process requirements.

Manufacturer Continuity: Texas Instruments variants (LP2986IMX-5.0/NOPB, LP2988IMX-5.0/NOPB) maintain the original manufacturer lineage and are recommended for long-term supply chain stability.

Inventory Availability: All substitutes maintain adequate stock levels ranging from 2100 to 5967 units.

Frequently Asked Questions (FAQ)

Q: Can LP2986IMX-5.0/NOPB be used as a direct replacement for LP2986AIMX-5.0?

A: Yes. Both parts share identical electrical specifications (5V output, 200mA current, 0.35V dropout voltage, 8-SOIC package). The primary difference is product status (active vs. obsolete) and RoHS compliance. LP2986IMX-5.0/NOPB is ROHS3 compliant and actively supported by Texas Instruments.

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

A: All LP2986 and LP2987 variants listed maintain identical electrical and mechanical parameters. Differences exist only in manufacturer designation and product status. Both series are functionally interchangeable for this 5V, 200mA application.

Q: Are National Semiconductor and Texas Instruments variants interchangeable?

A: Yes. All variants maintain identical output voltage (5V), output current (200mA), dropout voltage (0.35V @ 200mA), and 8-SOIC package specifications. Interchangeability is confirmed at the electrical and mechanical level.

Q: Does packaging format (bulk vs. tape & reel) affect electrical performance?

A: No. Packaging format affects only supply chain logistics and assembly process compatibility. Electrical and mechanical specifications remain identical regardless of packaging format.

Q: Which substitute is recommended for new designs?

A: LP2986IMX-5.0/NOPB or LP2988IMX-5.0/NOPB from Texas Instruments are recommended for new designs. Both are active products with ROHS3 compliance, tape & reel packaging for automated assembly, and manufacturer support continuity.

Q: Is the 8-SOIC package pinout identical across all substitutes?

A: Yes. All substitutes use the 8-SOIC package with 0.154" (3.90mm) width. Pinout and mechanical dimensions are identical, enabling direct PCB footprint compatibility.

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