LM2623MMX Equivalent & Substitute Parts

Part Overview

The LM2623MMX is a boost switching regulator IC from Texas Instruments designed for step-up power conversion applications. It delivers positive adjustable output voltage with a maximum output current of 2.2A and operates across an input voltage range of 0.8V to 14V. The device is housed in an 8-TSSOP/8-MSOP package with a 3.00mm width.

The LM2623MMX carries an obsolete product status, making it necessary to identify equivalent substitute parts for new designs and ongoing production requirements. Active alternatives with identical electrical and mechanical specifications are available to ensure design continuity and supply chain reliability.

Substiute Parts

LM2623MMX

Texas InstrumentsIn Stock: 3226LM2623MMX Datasheet

Current PartRFQ

LM2623MMX/NOPB

Texas InstrumentsIn Stock: 30255LM2623MMX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2623MMX is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications in the following key areas:

• Boost converter topology with positive adjustable output
• Input voltage range: 0.8V to 14V
• Output voltage range: 1.24V to 14V
• Output current capability: 2.2A (Switch)
• Switching frequency: 300kHz ~ 2MHz
• Package type: 8-TSSOP/8-MSOP with 3.00mm width
• Operating temperature range: -40°C to 85°C
• Surface mount configuration

The LM2623MMX/NOPB qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The LM2623MMX/NOPB is the direct substitute for the obsolete LM2623MMX. Both parts share identical electrical performance and mechanical specifications, ensuring pin-for-pin and functional compatibility.

The primary distinction between the two parts is product status and regulatory compliance. The LM2623MMX/NOPB carries active product status with ROHS3 compliance, whereas the original LM2623MMX is obsolete and RoHS non-compliant. For new designs and production applications, the LM2623MMX/NOPB is the appropriate selection.

Both parts maintain equivalent moisture sensitivity levels and regulatory classifications (REACH Unaffected, ECCN EAR99). The /NOPB suffix indicates lead-free plating and RoHS compliance, reflecting current manufacturing standards.

Frequently Asked Questions (FAQ)

Q: Can the LM2623MMX/NOPB be used as a direct replacement for the LM2623MMX?

A: Yes. The LM2623MMX/NOPB is electrically and mechanically identical to the LM2623MMX across all specified parameters. Both devices feature the same boost converter topology, voltage ranges, output current capability, switching frequency, and 8-TSSOP/8-MSOP package configuration. The parts are pin-for-pin compatible with no circuit modifications required.

Q: What is the significance of the /NOPB suffix?

A: The /NOPB suffix indicates lead-free plating and RoHS3 compliance. This reflects the part's adherence to current environmental and regulatory standards. The original LM2623MMX is RoHS non-compliant, while the LM2623MMX/NOPB meets ROHS3 requirements.

Q: Are there any packaging differences between these parts?

A: Both parts use the same 8-TSSOP/8-MSOP package with 3.00mm width. The LM2623MMX/NOPB is available in Cut Tape (CT) and Digi-Reel packaging options, providing flexibility for different procurement and assembly workflows.

Q: Why is the LM2623MMX marked as obsolete?

A: The LM2623MMX has reached end-of-life status. The LM2623MMX/NOPB represents the active continuation of this product line with updated compliance certifications. For ongoing production and new designs, the active part number should be specified.

Q: Are the operating temperature ranges identical?

A: Yes. Both the LM2623MMX and LM2623MMX/NOPB operate across the same temperature range of -40°C to 85°C (TA), ensuring equivalent thermal performance in all application environments.