LP2986AIMMX-3.3 Equivalent & Substitute Parts

Part Overview

The LP2986AIMMX-3.3 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.3V output applications with 200mA current capacity. This device operates in the 8-VSSOP package and includes integrated protection features for over-current, over-temperature, and short-circuit conditions. The main part is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	3.3V
Output Current	200mA
Input Voltage (Max)	16V
Voltage Dropout (Max)	0.35V @ 200mA
Quiescent Current	120 µA
PSRR	65dB (1kHz)
Package	8-VSSOP (8-TSSOP, 8-MSOP, 0.118", 3.00mm Width)
Operating Temperature Range	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable

Substitute Part Grouping Explanation

Substitute parts for the LP2986AIMMX-3.3 are selected based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Output voltage fixed at 3.3V
Output current capacity of 200mA
Maximum input voltage of 16V
Voltage dropout of 0.35V @ 200mA
Quiescent current of 120 µA
PSRR of 65dB (1kHz)
8-VSSOP package configuration
Operating temperature range of -40°C to 125°C
Identical protection features (Over Current, Over Temperature, Short Circuit)
Enable control feature

All substitute parts listed maintain these electrical specifications and physical package requirements, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	PSRR	Package	Operating Temp	RoHS Status	Inventory
LP2986AIMMX-3.3	Texas Instruments	Obsolete	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	RoHS non-compliant	2486 Pcs
LP2986AIMM-3.3/NOPB	Texas Instruments	Active	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	ROHS3 Compliant	2000 Pcs
LP2986IMM-3.3/NOPB	National Semiconductor	Active	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Not specified	1814 Pcs
LP2987IMM-3.3/NOPB	National Semiconductor	Active	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	Not specified	2654 Pcs
LP2987IMMX-3.3/NOPB	Texas Instruments	Active	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	ROHS3 Compliant	1189 Pcs
LP2988AIMM-3.3/NOPB	Texas Instruments	Active	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	ROHS3 Compliant	2220 Pcs
LP2988IMM-3.3/NOPB	Texas Instruments	Active	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	ROHS3 Compliant	1093 Pcs
LP2988IMMX-3.3/NOPB	Texas Instruments	Active	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	8-VSSOP	-40°C to 125°C	ROHS3 Compliant	4420 Pcs

Engineering Selection Recommendations

All substitute parts maintain identical electrical and mechanical specifications to the LP2986AIMMX-3.3. Selection should prioritize active product status and compliance certifications:

LP2986AIMM-3.3/NOPB, LP2987IMMX-3.3/NOPB, LP2988AIMM-3.3/NOPB, LP2988IMM-3.3/NOPB, and LP2988IMMX-3.3/NOPB are all active products with ROHS3 compliance, providing long-term availability and regulatory alignment. LP2986IMM-3.3/NOPB and LP2987IMM-3.3/NOPB are active alternatives from National Semiconductor with equivalent electrical performance. The obsolete status of the main part necessitates transition to one of these active equivalents for new designs and production continuity.

Frequently Asked Questions (FAQ)

Q: Can LP2986AIMM-3.3/NOPB directly replace LP2986AIMMX-3.3?

A: Yes. Both parts share identical electrical specifications (3.3V output, 200mA capacity, 0.35V dropout, 65dB PSRR) and the same 8-VSSOP package. The primary difference is product status and RoHS compliance. LP2986AIMM-3.3/NOPB is active and ROHS3 compliant.

Q: What is the difference between LP2987 and LP2988 variants?

A: All LP2987 and LP2988 variants maintain the same electrical parameters as the LP2986 series for this 3.3V 200mA configuration. They are functionally equivalent within the specified parameter set.

Q: Are packaging differences between Tape & Reel and Bulk significant?

A: Packaging format (Tape & Reel vs. Bulk) affects handling and assembly processes but does not alter electrical or mechanical compatibility. The 8-VSSOP package footprint remains identical across all variants.

Q: Why is the main part marked as obsolete?

A: The LP2986AIMMX-3.3 is classified as obsolete, indicating it is no longer in active production. Active equivalent parts ensure design continuity and long-term supply chain reliability.

Q: Do all substitute parts meet the same operating temperature range?

A: Yes. All substitute parts operate across the -40°C to 125°C temperature range, matching the main part specification.

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