LP2986IMM-3.3 Equivalent & Substitute Parts

Part Overview

The LP2986IMM-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 and 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

Substitution eligibility for the LP2986IMM-3.3 is determined by strict equivalence across the following critical parameters:

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

All substitute parts listed maintain identical electrical specifications and package dimensions, ensuring direct functional replacement in existing designs.

Parameter Comparison

Part Number	Manufacturer	Product Status	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	PSRR	Package	Operating Temp	RoHS Status
LP2986IMM-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
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
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
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
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
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
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
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

Engineering Selection Recommendations

All listed substitute parts maintain identical electrical and mechanical specifications to the LP2986IMM-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 the best long-term availability and regulatory alignment for new designs.

LP2986IMM-3.3/NOPB and LP2987IMM-3.3/NOPB are active alternatives with equivalent electrical performance but without specified RoHS compliance documentation.

Packaging variants (standard bulk versus Tape & Reel) should be selected based on production volume and assembly requirements. All parts use identical 8-VSSOP package geometry.

Frequently Asked Questions (FAQ)

Q: Can LP2986AIMM-3.3/NOPB directly replace LP2986IMM-3.3 in existing designs?

A: Yes. Both parts share identical electrical specifications, output voltage, current capacity, dropout voltage, and 8-VSSOP package dimensions. The primary difference is product status (active versus obsolete) and RoHS compliance. No circuit modifications are required.

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

A: All LP2987 and LP2988 variants maintain the same electrical specifications as the LP2986IMM-3.3 for this 3.3V 200mA configuration. They are functionally equivalent for this output voltage and current rating.

Q: Does packaging type (Tape & Reel versus Bulk) affect electrical performance?

A: No. Tape & Reel and Bulk packaging contain identical die and electrical characteristics. Packaging selection depends on production volume, assembly automation, and inventory management requirements.

Q: Are all substitute parts REACH compliant?

A: All listed substitute parts are marked as REACH Unaffected, indicating compliance with REACH regulations.

Q: Which substitute part offers the best long-term availability?

A: LP2988IMMX-3.3/NOPB and LP2988IMM-3.3/NOPB are active Texas Instruments products with ROHS3 compliance and higher inventory levels, supporting sustained production and design continuity.

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