LP2988IMM-3.3/NOPB Linear Voltage Regulator Equivalent & Substitute Parts

Part Overview

The LP2988IMM-3.3/NOPB is an active linear voltage regulator IC manufactured by Texas Instruments, designed for positive fixed 3.3V output applications with 200mA current capacity. This Power Management (PMIC) component operates in the 8-VSSOP surface mount package and is compliant with ROHS3 and REACH standards. The part is currently in active production status with 1093 units in stock inventory.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or design flexibility within the same electrical and mechanical specifications.

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)
Operating Temperature Range	-40°C to 125°C
Package Type	8-VSSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount
Protection Features	Over Current, Over Temperature, Short Circuit
Control Features	Enable

Substitute Part Grouping Explanation

Substitute parts for the LP2988IMM-3.3/NOPB are qualified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

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

All identified substitute parts meet these parameters without exception. Packaging format (Tape & Reel vs. Bulk) does not affect electrical or mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Input Voltage (Max)	Dropout Voltage	Quiescent Current	PSRR	Operating Temp	Package	Inventory
LP2988IMM-3.3/NOPB	Texas Instruments	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	-40°C to 125°C	8-VSSOP	1093 Pcs
LP2986AIMM-3.3/NOPB	Texas Instruments	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	-40°C to 125°C	8-VSSOP	2000 Pcs
LP2986IMM-3.3/NOPB	National Semiconductor	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	-40°C to 125°C	8-VSSOP	1814 Pcs
LP2987IMM-3.3/NOPB	National Semiconductor	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	-40°C to 125°C	8-VSSOP	2654 Pcs
LP2988AIMM-3.3/NOPB	Texas Instruments	3.3V	200mA	16V	0.35V @ 200mA	120 µA	65dB (1kHz)	-40°C to 125°C	8-VSSOP	2220 Pcs

Engineering Selection Recommendations

All substitute parts listed maintain active product status and comply with ROHS3 and REACH standards. Selection between the LP2988IMM-3.3/NOPB and its equivalents should be based on:

Inventory availability and lead time requirements
Packaging format preference (Tape & Reel vs. Bulk)
Manufacturer preference (Texas Instruments vs. National Semiconductor)
Supply chain logistics and cost considerations

The LP2987IMM-3.3/NOPB offers the highest inventory level at 2654 units. The LP2988AIMM-3.3/NOPB and LP2986AIMM-3.3/NOPB are both Texas Instruments products available in Tape & Reel packaging with 2220 and 2000 units respectively.

Frequently Asked Questions (FAQ)

Q: Can LP2986AIMM-3.3/NOPB be used as a direct replacement for LP2988IMM-3.3/NOPB?

A: Yes. Both parts share identical electrical specifications including 3.3V output, 200mA current capacity, 0.35V dropout voltage, and 8-VSSOP package configuration. The primary difference is the base product number designation (LP2986 vs. LP2988), which does not affect functional compatibility.

Q: What is the difference between LP2987IMM-3.3/NOPB and LP2988IMM-3.3/NOPB?

A: Both parts are electrically and mechanically equivalent with identical output voltage, current rating, dropout voltage, and package type. The difference lies in the base product number series (LP2987 vs. LP2988) and manufacturer designation (National Semiconductor vs. Texas Instruments).

Q: Does packaging format (Tape & Reel vs. Bulk) affect compatibility?

A: No. Packaging format affects only handling, storage, and assembly logistics. Electrical and mechanical specifications remain identical regardless of whether the part is supplied in Tape & Reel or Bulk format.

Q: Are all substitute parts ROHS3 compliant?

A: The LP2988IMM-3.3/NOPB, LP2986AIMM-3.3/NOPB, and LP2988AIMM-3.3/NOPB are explicitly ROHS3 compliant. Compliance status for LP2986IMM-3.3/NOPB and LP2987IMM-3.3/NOPB was not provided in the specification data.

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

A: Yes. All parts use the 8-VSSOP surface mount package with identical pin configuration and mechanical dimensions (0.118", 3.00mm Width). PCB layout and assembly processes require no modification.

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