LM2623AMMX Equivalent & Substitute Parts

Part Overview

The LM2623AMMX is a boost switching regulator IC from Texas Instruments designed for step-up voltage conversion applications. It delivers positive adjustable output from 1.24V to 14V with a maximum switch current of 2.2A, operating across an input voltage range of 0.8V to 14V. The device is housed in an 8-TSSOP/8-MSOP package and operates across the industrial temperature range of -40°C to 85°C.

The LM2623AMMX carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for applications currently utilizing this regulator.

Substiute Parts

LM2623AMMX

Texas InstrumentsIn Stock: 3090LM2623AMMX Datasheet

Current PartRFQ

LM2623AMMX/NOPB

Texas InstrumentsIn Stock: 15653LM2623AMMX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2623AMMX is determined by strict equivalence across the following critical parameters:

• Functional topology: Step-up (boost) switching regulator
• Output configuration: Positive adjustable voltage
• Input voltage range: 0.8V to 14V minimum and maximum
• Output voltage range: 1.24V to 14V minimum and maximum
• Switch current capability: 2.2A
• Switching frequency range: 300kHz to 2MHz
• Package type: 8-TSSOP/8-MSOP (0.118", 3.00mm Width)
• Operating temperature range: -40°C to 85°C
• Number of outputs: Single output
• Synchronous rectifier: Not present

The LM2623AMMX/NOPB qualifies as a direct substitute based on complete alignment with all specified electrical and mechanical parameters. The primary distinction is product status: the substitute part is active in production, whereas the original part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The LM2623AMMX/NOPB is the direct substitute for the obsolete LM2623AMMX. Both parts share identical electrical specifications, thermal operating range, and physical packaging. The substitute part maintains active production status with Texas Instruments, ensuring long-term availability and supply chain continuity.

The LM2623AMMX/NOPB carries REACH Unaffected compliance status, consistent with the original part. Both parts are RoHS non-compliant and share equivalent moisture sensitivity levels. Selection of the active substitute part eliminates obsolescence risk while preserving full functional and mechanical compatibility with existing designs.

Frequently Asked Questions (FAQ)

Q: Can the LM2623AMMX/NOPB be used as a direct replacement for the LM2623AMMX?

A: Yes. The LM2623AMMX/NOPB is electrically and mechanically identical to the LM2623AMMX across all specified parameters, including input/output voltage ranges, switch current, switching frequency, package type, and operating temperature range. The primary difference is product status: the substitute is active in production.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix designates a part without lead-free plating. This designation distinguishes packaging variants within the same base product number (LM2623).

Q: Are there any compliance differences between the two parts?

A: Both parts share identical REACH and RoHS compliance status. Both are RoHS non-compliant and REACH Unaffected. Moisture sensitivity levels are equivalent.

Q: Is the 8-TSSOP/8-MSOP package footprint identical between both parts?

A: Yes. Both parts use the same 8-TSSOP/8-MSOP package with 0.118" width (3.00mm). PCB layout and component placement are fully compatible.

Q: Why is the original LM2623AMMX marked as obsolete?

A: Product obsolescence is determined by the manufacturer. The active substitute LM2623AMMX/NOPB provides equivalent functionality and ensures continued design support.