LP2988IM-3.3/NOPB Equivalent & Substitute Parts

Part Overview

The LP2988IM-3.3/NOPB is a linear voltage regulator IC from Texas Instruments designed for positive fixed 3.3V output applications with 200mA current capacity in an 8-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The LP2988 series provides regulated power management with integrated protection features including over-current, over-temperature, and short-circuit protection, suitable for applications requiring stable 3.3V rails with moderate current demands.

Substiute Parts

LP2988IM-3.3/NOPB

Texas InstrumentsIn Stock: 930LP2988IM-3.3/NOPB Datasheet

Current PartRFQ

LP2987IM-3.3/NOPB

Texas InstrumentsIn Stock: 2326LP2987IM-3.3/NOPB Datasheet

MFR RecommendedRFQ

LP2986AIM-3.3/NOPB

Texas InstrumentsIn Stock: 1179LP2986AIM-3.3/NOPB Datasheet

Parametric EquivalentRFQ

LP2986IM-3.3/NOPB

Texas InstrumentsIn Stock: 1532LP2986IM-3.3/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP2988IM-3.3/NOPB 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)
• Operating temperature range of -40°C ~ 125°C
• 8-SOIC package configuration (0.154", 3.90mm Width)
• Identical protection features (Over Current, Over Temperature, Short Circuit)
• Enable control feature

All substitute parts listed maintain these exact electrical and mechanical specifications, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The LP2988IM-3.3/NOPB is obsolete and should be replaced with an active product for new designs and ongoing procurement. All three substitute parts—LP2987IM-3.3/NOPB, LP2986AIM-3.3/NOPB, and LP2986IM-3.3/NOPB—are active products from Texas Instruments with identical electrical and mechanical specifications.

All substitute parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating, ensuring compatibility with current manufacturing and environmental standards. Selection among the three active alternatives should be based on availability and supply chain considerations, as all three are functionally equivalent for the LP2988IM-3.3/NOPB application.

Frequently Asked Questions (FAQ)

Q: Can LP2987IM-3.3/NOPB, LP2986AIM-3.3/NOPB, and LP2986IM-3.3/NOPB be used interchangeably with LP2988IM-3.3/NOPB?

A: Yes. All three substitute parts share identical electrical specifications including 3.3V output, 200mA current capacity, 0.35V dropout voltage, 120 µA quiescent current, and 65dB PSRR. They are housed in the same 8-SOIC package with identical pin configurations and protection features.

Q: Why is the LP2988IM-3.3/NOPB listed as obsolete?

A: The LP2988 series has been superseded by the LP2987 and LP2986 series. The substitute parts provide the same functionality with active product status and ongoing manufacturer support.

Q: Are there any differences in packaging between the main part and substitutes?

A: No. All parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package with identical mechanical dimensions and pin assignments.

Q: Do the substitute parts meet the same compliance standards?

A: Yes. All substitute parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of the LP2988IM-3.3/NOPB.

Q: What is the primary criterion for substitution?

A: Electrical equivalence across all key parameters: fixed 3.3V output, 200mA current capacity, 16V maximum input, 0.35V dropout voltage, and identical protection and control features. Package compatibility in 8-SOIC is also required.