LP2986IM-5.0 Linear Voltage Regulator IC Equivalent & Substitute Parts

Part Overview

The LP2986IM-5.0 is a linear voltage regulator IC from Texas Instruments, classified as a Power Management (PMIC) component. This device provides a fixed 5V positive output with 200mA current capacity in an 8-SOIC surface mount package. The main part is currently listed as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement.

Key Parameters

Parameter	Value
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Min/Fixed)	5V
Voltage - Input (Max)	16V
Current - Output	200mA
Voltage Dropout (Max)	0.35V @ 200mA
Current - Quiescent (Iq)	120 µA
PSRR	65dB (1kHz)
Protection Features	Over Current, Over Temperature, Short Circuit
Operating Temperature	-40°C ~ 125°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the LP2986IM-5.0 is determined by strict equivalence across the following critical parameters:

Output voltage: 5V fixed
Output current capacity: 200mA
Maximum input voltage: 16V
Voltage dropout: 0.35V @ 200mA
Package type: 8-SOIC surface mount
Quiescent current: 120 µA
Protection features: Over Current, Over Temperature, Short Circuit
Operating temperature range: -40°C ~ 125°C

All identified substitute parts maintain identical electrical specifications and mechanical compatibility. Substitutes are grouped into two categories: direct manufacturer equivalents (same part number with packaging variants) and parametric equivalents (different base part numbers with identical performance characteristics).

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Package	Inventory (Pcs)
LP2986IM-5.0	Texas Instruments	Obsolete	5V	200mA	16V	0.35V @ 200mA	8-SOIC	3700
LP2986IM-5.0/NOPB	National Semiconductor	Active	5V	200mA	16V	0.35V @ 200mA	8-SOIC	2800
LP2986AIM-5.0/NOPB	Texas Instruments	Active	5V	200mA	16V	0.35V @ 200mA	8-SOIC	5200
LP2987IM-5.0/NOPB	Texas Instruments	Active	5V	200mA	16V	0.35V @ 200mA	8-SOIC	3800
LP2988AIM-5.0/NOPB	Texas Instruments	Active	5V	200mA	16V	0.35V @ 200mA	8-SOIC	2524
LP2988IM-5.0/NOPB	Texas Instruments	Active	5V	200mA	16V	0.35V @ 200mA	8-SOIC	2200

Engineering Selection Recommendations

All substitute parts listed maintain full electrical and mechanical compatibility with the LP2986IM-5.0. Selection should prioritize active product status parts to ensure long-term availability and supply chain stability.

LP2986AIM-5.0/NOPB and LP2987IM-5.0/NOPB are recommended as primary alternatives, both manufactured by Texas Instruments with active product status and ROHS3 compliance. These parts offer the highest current inventory levels (5200 and 3800 units respectively) and maintain identical performance specifications.

LP2988AIM-5.0/NOPB and LP2988IM-5.0/NOPB are secondary alternatives with active status and full parametric equivalence. LP2986IM-5.0/NOPB from National Semiconductor provides an additional active option with 2800 units in stock.

All substitute parts carry ROHS3 compliance, MSL Level 1 rating, and identical protection features (Over Current, Over Temperature, Short Circuit). Operating temperature range remains -40°C ~ 125°C across all variants.

Frequently Asked Questions (FAQ)

Q: Can LP2986AIM-5.0/NOPB be used as a direct replacement for LP2986IM-5.0?

A: Yes. Both parts deliver identical electrical performance: 5V fixed output, 200mA current capacity, 0.35V dropout voltage, and 8-SOIC package configuration. The primary difference is product status (active vs. obsolete) and packaging variant (tube vs. standard).

Q: What is the difference between LP2986IM-5.0/NOPB and LP2986AIM-5.0/NOPB?

A: Both maintain identical electrical specifications and 8-SOIC packaging. The "/NOPB" suffix indicates lead-free (Pb-free) compliance. The "A" designation in LP2986AIM-5.0/NOPB represents a product line variant. All parameters remain equivalent for substitution purposes.

Q: Are LP2987IM-5.0/NOPB and LP2988IM-5.0/NOPB suitable replacements?

A: Yes. These parts are parametric equivalents with identical output voltage (5V), current capacity (200mA), dropout voltage (0.35V @ 200mA), and 8-SOIC package. Different base part numbers (LP2987 vs. LP2988) reflect design variants within the same performance class, with no functional differences for this application.

Q: Does package type affect substitution compatibility?

A: No. All substitute parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package. Packaging variants (Bulk, Tube) refer to shipping and storage configuration only and do not affect electrical performance or PCB compatibility.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification and MSL Level 1 rating, meeting environmental and reliability standards equivalent to the original LP2986IM-5.0.

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