LP2989IMM-5.0/NOPB Equivalent & Substitute Parts

Part Overview

The LP2989IMM-5.0/NOPB is a linear voltage regulator IC from Texas Instruments designed for positive fixed 5V output applications with 500mA current capacity. This device operates across an input voltage range up to 16V and features integrated protection mechanisms including over-current, over-temperature, and short-circuit protection. The part is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain flexibility for applications requiring 5V regulation with comparable electrical and mechanical specifications.

Substiute Parts

LP2989IMM-5.0/NOPB

Texas InstrumentsIn Stock: 53370LP2989IMM-5.0/NOPB Datasheet

Current PartRFQ

TPS7A2650DRVR

Texas InstrumentsIn Stock: 17467TPS7A2650DRVR Datasheet

MFR RecommendedRFQ

LP2989AIMM-5.0/NOPB

Texas InstrumentsIn Stock: 5978LP2989AIMM-5.0/NOPB Datasheet

Parametric EquivalentRFQ

LP2989AIMMX-5.0/NOPB

Texas InstrumentsIn Stock: 1074LP2989AIMMX-5.0/NOPB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LP2989IMM-5.0/NOPB is determined by the following critical parameters: fixed 5V output voltage, 500mA output current capability, positive output configuration, surface mount technology, and operating temperature range of -40°C to 125°C. All substitute parts must maintain these core electrical specifications to ensure functional compatibility within the application circuit.

Two substitution categories are identified:

Parametric Equivalents maintain identical electrical characteristics and package form factor (8-VSSOP), differing only in packaging format (Cut Tape vs. Tape & Reel) or product status. These parts are direct pin-compatible replacements.

Functional Substitute offers improved electrical performance characteristics while maintaining the same output voltage and current specifications but in a different package form factor (6-WSON). This part introduces enhanced features and superior performance metrics.

Parameter Comparison

Engineering Selection Recommendations

LP2989AIMMX-5.0/NOPB is the preferred parametric equivalent for new designs. This part maintains identical electrical specifications and package compatibility with the LP2989IMM-5.0/NOPB while offering Active product status, ensuring long-term availability and manufacturing support. The part is available in Tape & Reel packaging suitable for automated assembly processes.

LP2989AIMM-5.0/NOPB serves as an alternative parametric equivalent with identical electrical and mechanical characteristics. This part carries Last Time Buy status, indicating limited future availability. Selection of this part should be evaluated based on current inventory requirements and project timelines.

TPS7A2650DRVR functions as a performance-enhanced substitute for applications where improved efficiency and reduced quiescent current are beneficial. This part delivers superior electrical characteristics including 50% lower dropout voltage (0.33V vs. 0.65V), 97.4% lower quiescent current (4.5 µA vs. 175 µA), and higher maximum input voltage (18V vs. 16V). However, the 6-WSON package requires PCB layout modifications and is not pin-compatible with the 8-VSSOP form factor. This part maintains Active product status and full compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can LP2989AIMMX-5.0/NOPB be used as a direct replacement for LP2989IMM-5.0/NOPB?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, output voltage, current capacity, dropout voltage, and 8-VSSOP package configuration. The primary difference is packaging format (Tape & Reel vs. standard Tape & Reel) and product status. Pin-for-pin compatibility is maintained.

Q: What are the advantages of using TPS7A2650DRVR over the LP2989 series?

A: The TPS7A2650DRVR offers improved performance metrics: 50% reduction in dropout voltage, 97.4% reduction in quiescent current, and support for higher input voltage (18V maximum). These characteristics reduce power dissipation and improve efficiency in battery-powered or low-input-voltage applications. The part is in Active production status.

Q: Is the TPS7A2650DRVR a pin-compatible replacement?

A: No. The TPS7A2650DRVR uses a 6-WSON (2x2) package, while the LP2989IMM-5.0/NOPB uses an 8-VSSOP package. PCB layout and schematic modifications are required for substitution. Pin assignments differ between the two packages.

Q: Why is LP2989IMM-5.0/NOPB classified as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued this part number and will not accept new orders beyond a specified cutoff date. Existing inventory may be available, but long-term supply cannot be guaranteed. Migration to active alternatives such as LP2989AIMMX-5.0/NOPB or TPS7A2650DRVR is recommended for new designs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. LP2989AIMM-5.0/NOPB, LP2989AIMMX-5.0/NOPB, and TPS7A2650DRVR are all ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited). All parts maintain REACH Unaffected status and EAR99 export classification.

Q: What is the difference between LP2989AIMM-5.0/NOPB and LP2989AIMMX-5.0/NOPB?

A: Both parts are parametric equivalents with identical electrical specifications. The primary difference is packaging format: LP2989AIMM-5.0/NOPB is supplied in Cut Tape format, while LP2989AIMMX-5.0/NOPB is supplied in Tape & Reel format. LP2989AIMMX-5.0/NOPB carries Active product status, providing superior long-term availability assurance.