LP2988AIMM-5.0 Equivalent & Substitute Parts

Part Overview

The LP2988AIMM-5.0 is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output applications with 200mA current capacity in an 8-VSSOP surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Active alternatives from the LP2986, LP2987, and LP2988 series provide direct functional replacement with identical electrical specifications and packaging.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
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

Substitution eligibility is determined by strict equivalence across the following parameters:

Output voltage: 5V fixed
Output current capacity: 200mA
Input voltage rating: 16V maximum
Voltage dropout: 0.35V @ 200mA
Quiescent current: 120 µA
PSRR: 65dB (1kHz)
Package type: 8-VSSOP
Operating temperature range: -40°C to 125°C
Protection features: Over Current, Over Temperature, Short Circuit
Control features: Enable function

All substitute parts listed maintain identical electrical performance and mechanical compatibility. Substitution categories are defined by product status and packaging configuration (Tape & Reel vs. bulk).

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Voltage	Output Current	Voltage Dropout	Package	RoHS Status	Inventory (Pcs)
LP2988AIMM-5.0	Texas Instruments	Obsolete	5V	200mA	0.35V @ 200mA	8-VSSOP	Non-compliant	3100
LP2988AIMM-5.0/NOPB	Texas Instruments	Active	5V	200mA	0.35V @ 200mA	8-VSSOP	ROHS3 Compliant	3487
LP2986AIMM-5.0/NOPB	Texas Instruments	Active	5V	200mA	0.35V @ 200mA	8-VSSOP	ROHS3 Compliant	1900
LP2986AIMMX-5.0/NOPB	Texas Instruments	Active	5V	200mA	0.35V @ 200mA	8-VSSOP	ROHS3 Compliant	4400
LP2986IMM-5.0/NOPB	Texas Instruments	Active	5V	200mA	0.35V @ 200mA	8-VSSOP	ROHS3 Compliant	29400
LP2986IMMX-5.0/NOPB	Texas Instruments	Active	5V	200mA	0.35V @ 200mA	8-VSSOP	ROHS3 Compliant	2380
LP2987AIMM-5.0/NOPB	Texas Instruments	Active	5V	200mA	0.35V @ 200mA	8-VSSOP	ROHS3 Compliant	3512
LP2987IMM-5.0/NOPB	Texas Instruments	Active	5V	200mA	0.35V @ 200mA	8-VSSOP	ROHS3 Compliant	2600
LP2988IMM-5.0/NOPB	Texas Instruments	Active	5V	200mA	0.35V @ 200mA	8-VSSOP	ROHS3 Compliant	2500

Engineering Selection Recommendations

Primary Recommendation: LP2988AIMM-5.0/NOPB

This part is the direct equivalent of the obsolete LP2988AIMM-5.0, maintaining identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. The /NOPB suffix indicates Tape & Reel packaging with lead-free termination, suitable for automated assembly processes.

Secondary Recommendations (LP2986 and LP2987 Series)

LP2986AIMMX-5.0/NOPB, LP2986IMM-5.0/NOPB, LP2986IMMX-5.0/NOPB, LP2987AIMM-5.0/NOPB, and LP2987IMM-5.0/NOPB are parametrically equivalent alternatives. All maintain identical electrical performance and 8-VSSOP packaging. Selection among these alternatives is based on inventory availability and procurement lead times. LP2986IMM-5.0/NOPB offers the highest inventory level at 29,400 units.

Compliance Consideration

All active substitute parts carry ROHS3 compliance certification, whereas the original LP2988AIMM-5.0 is RoHS non-compliant. This compliance upgrade is standard for active production parts and does not affect electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can LP2986 series parts directly replace LP2988AIMM-5.0?

A: Yes. LP2986AIMM-5.0/NOPB, LP2986AIMMX-5.0/NOPB, LP2986IMM-5.0/NOPB, and LP2986IMMX-5.0/NOPB are parametrically equivalent. All electrical specifications, output voltage, current capacity, dropout voltage, and 8-VSSOP packaging are identical.

Q: What is the difference between LP2988AIMM-5.0 and LP2988AIMM-5.0/NOPB?

A: The /NOPB suffix indicates lead-free termination and Tape & Reel packaging configuration. The original part lacks this designation. Electrical performance is identical; the suffix reflects manufacturing and packaging standards.

Q: Are there differences between AIMM, IMM, AIMMX, and IMMX variants?

A: These designations reflect internal manufacturing process variations within Texas Instruments' product line. All variants maintain identical electrical specifications and 8-VSSOP package dimensions. Selection is based on availability and procurement requirements.

Q: Why is the original LP2988AIMM-5.0 marked obsolete?

A: Product obsolescence reflects Texas Instruments' lifecycle management. Active equivalents in the LP2986, LP2987, and LP2988 series provide continued design support with improved compliance certifications.

Q: Does ROHS3 compliance affect circuit performance?

A: No. ROHS3 compliance is a manufacturing and material standard that does not alter electrical characteristics, performance, or compatibility with existing circuit designs.

Q: Which substitute part has the best availability?

A: LP2986IMM-5.0/NOPB offers the highest inventory at 29,400 units, followed by LP2986AIMMX-5.0/NOPB at 4,400 units.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. All substitute parts share identical 8-VSSOP package dimensions (0.118" / 3.00mm width) and pin configurations, enabling direct PCB footprint compatibility without layout modifications.

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