LM5009MMX Equivalent & Substitute Parts

Part Overview

The LM5009MMX is a buck switching regulator IC from Texas Instruments designed for positive adjustable output applications. It delivers 150mA output current with an adjustable output voltage range from 2.5V to 85V, supporting input voltages from 9.5V to 95V. The device is packaged in an 8-TSSOP/8-MSOP surface mount configuration.

The LM5009MMX is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this regulator topology.

Substiute Parts

LM5009MMX

Texas InstrumentsIn Stock: 2386LM5009MMX Datasheet

Current PartRFQ

LM5009MMX/NOPB

Texas InstrumentsIn Stock: 15939LM5009MMX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM5009MMX is determined by strict equivalence across the following critical parameters:

• Function: Step-Down (Buck) topology
• Output Configuration: Positive adjustable output
• Number of Outputs: Single output
• Voltage - Input Range: 9.5V minimum to 95V maximum
• Voltage - Output Range: 2.5V minimum to 85V maximum
• Current - Output: 150mA
• Operating Temperature Range: -40°C to 125°C (TJ)
• Mounting Type: Surface Mount
• Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
• Supplier Device Package: 8-VSSOP

The LM5009MMX/NOPB is identified as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The LM5009MMX/NOPB is the direct substitute for the obsolete LM5009MMX. Both parts share identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility.

The primary distinction between the two parts is product status and regulatory compliance. The LM5009MMX is obsolete and RoHS non-compliant, while the LM5009MMX/NOPB is active and ROHS3 compliant. For new designs or ongoing production requiring regulatory compliance, the LM5009MMX/NOPB is the appropriate selection. The /NOPB suffix indicates lead-free plating and RoHS3 compliance.

Both parts are supplied in Cut Tape (CT) and Digi-Reel® packaging formats, supporting standard manufacturing and assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the LM5009MMX/NOPB be used as a direct replacement for the LM5009MMX?

A: Yes. The LM5009MMX/NOPB is electrically and mechanically identical to the LM5009MMX. All voltage ratings, current specifications, operating temperature range, and package dimensions are equivalent. No circuit modifications or PCB layout changes are required.

Q: What does the /NOPB suffix indicate?

A: The /NOPB suffix denotes lead-free plating and RoHS3 compliance. This marking distinguishes the part from legacy versions and indicates adherence to current environmental and regulatory standards.

Q: Are there differences in packaging between these parts?

A: Both parts use the same 8-TSSOP/8-MSOP package with 0.118" (3.00mm) width. The LM5009MMX/NOPB is supplied in Cut Tape (CT) and Digi-Reel® formats, which are standard for high-volume manufacturing.

Q: Why is the LM5009MMX marked as obsolete?

A: The LM5009MMX has been superseded by the LM5009MMX/NOPB. Texas Instruments transitioned to the /NOPB variant to meet RoHS3 compliance requirements and lead-free manufacturing standards.

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

A: No. Both parts deliver identical performance across all specified electrical parameters: 150mA output current, 9.5V to 95V input voltage range, 2.5V to 85V adjustable output voltage range, and -40°C to 125°C operating temperature.

Q: Can I mix LM5009MMX and LM5009MMX/NOPB parts in the same production batch?

A: Yes, from a functional and electrical standpoint. However, for regulatory compliance and traceability, it is recommended to standardize on the LM5009MMX/NOPB for all new production runs.