LP2987IMMX-3.3/NOPB Equivalent & Substitute Parts

Part Overview

The LP2987IMMX-3.3/NOPB is a linear voltage regulator IC manufactured by Texas Instruments, classified as a Power Management (PMIC) component. This device delivers a fixed 3.3V output at 200mA with a maximum dropout voltage of 0.35V at full load current. The part is actively produced and widely used in applications requiring low-noise, micropower regulation with integrated protection features.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or component lifecycle management while maintaining identical electrical and mechanical performance specifications.

Key Parameters

Parameter	Value
Manufacturer	Texas Instruments
Category	Power Management (PMIC)
Output Voltage (Fixed)	3.3V
Output Current	200mA
Input Voltage (Max)	16V
Dropout Voltage (Max)	0.35V @ 200mA
Quiescent Current	120 µA
PSRR	65dB (1kHz)
Package Type	8-VSSOP (8-TSSOP, 8-MSOP, 0.118" / 3.00mm Width)
Mounting Type	Surface Mount
Operating Temperature Range	-40°C to 125°C
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the LP2987IMMX-3.3/NOPB are qualified based on the following electrical and mechanical parameters:

Fixed output voltage of 3.3V
Output current rating of 200mA
Maximum input voltage of 16V
Dropout voltage of 0.35V at 200mA
Quiescent current of 120 µA
PSRR of 65dB at 1kHz
Enable control feature
Over Current, Over Temperature, and Short Circuit protection
8-VSSOP package configuration
Surface mount mounting type
Operating temperature range of -40°C to 125°C
Active product status
ROHS3 compliance

All identified substitutes maintain identical electrical performance and mechanical compatibility with the primary part number.

Parameter Comparison

Parameter	LP2987IMMX-3.3/NOPB	LP2986AIMM-3.3/NOPB	LP2986IMM-3.3/NOPB	LP2987IMM-3.3/NOPB	LP2988AIMM-3.3/NOPB
Manufacturer	Texas Instruments	Texas Instruments	National Semiconductor	National Semiconductor	Texas Instruments
Output Voltage	3.3V	3.3V	3.3V	3.3V	3.3V
Output Current	200mA	200mA	200mA	200mA	200mA
Input Voltage (Max)	16V	16V	16V	16V	16V
Dropout Voltage (Max)	0.35V @ 200mA	0.35V @ 200mA	0.35V @ 200mA	0.35V @ 200mA	0.35V @ 200mA
Quiescent Current	120 µA	120 µA	120 µA	120 µA	120 µA
PSRR	65dB (1kHz)	65dB (1kHz)	65dB (1kHz)	65dB (1kHz)	65dB (1kHz)
Package	8-VSSOP	8-VSSOP	8-VSSOP	8-VSSOP	8-VSSOP
Operating Temperature	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C
Product Status	Active	Active	Active	Active	Active
Protection Features	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit	Over Current, Over Temperature, Short Circuit
Control Features	Enable	Enable	Enable	Enable	Enable

Engineering Selection Recommendations

All substitute parts listed maintain active product status with continuous manufacturer support. Selection among equivalent parts may be based on packaging format availability (Tape & Reel versus Bulk), current inventory levels, and supply chain logistics.

LP2986AIMM-3.3/NOPB and LP2988AIMM-3.3/NOPB are supplied by Texas Instruments in Tape & Reel packaging with ROHS3 compliance and MSL 1 rating, matching the primary part's supply format and environmental certifications.

LP2986IMM-3.3/NOPB and LP2987IMM-3.3/NOPB are supplied by National Semiconductor with equivalent electrical specifications and 8-VSSOP package compatibility. These alternatives provide additional sourcing options when primary manufacturer availability is constrained.

All parts comply with ECCN EAR99 and HTSUS 8542.39.0001 classifications for export and tariff purposes.

Frequently Asked Questions (FAQ)

Q: Can LP2986AIMM-3.3/NOPB be used as a direct replacement for LP2987IMMX-3.3/NOPB?

A: Yes. Both parts deliver identical electrical performance: 3.3V fixed output, 200mA current capacity, 0.35V maximum dropout voltage, and 65dB PSRR. Both use 8-VSSOP packaging and operate across -40°C to 125°C. The primary difference is the base product number (LP2986 versus LP2987), which reflects internal design variants that do not affect functional equivalence for this output specification.

Q: What is the difference between Tape & Reel and Bulk packaging?

A: Tape & Reel packaging is supplied on continuous carrier tape suitable for automated assembly equipment. Bulk packaging contains loose components. Both formats contain identical parts; packaging selection depends on manufacturing process requirements and order quantity.

Q: Are National Semiconductor parts (LP2986IMM-3.3/NOPB, LP2987IMM-3.3/NOPB) compatible with Texas Instruments designs?

A: Yes. All substitute parts maintain identical electrical specifications, package dimensions, and pinout configurations. National Semiconductor and Texas Instruments share common product lineages for this regulator family. Functional compatibility is guaranteed across all listed alternatives.

Q: Does package width affect PCB layout?

A: No. All parts use 8-VSSOP packaging with 0.118" (3.00mm) width. PCB footprints, trace routing, and thermal management designs are interchangeable across all substitute parts.

Q: What certifications apply to all substitute parts?

A: All parts are ROHS3 compliant, carry MSL 1 (Unlimited) moisture sensitivity ratings, and are REACH Unaffected. These certifications ensure compatibility with modern manufacturing standards and environmental regulations.

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