LM2671M-5.0 Equivalent & Substitute Parts

Part Overview

The LM2671M-5.0 is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with a fixed 5V output. This device delivers 500mA output current and operates across a 6.5V to 40V input range, making it suitable for industrial and consumer power management applications. The main part number LM2671M-5.0 carries a Last Time Buy status, necessitating identification of equivalent alternatives for continued design support and procurement flexibility.

Substiute Parts

LM2671M-5.0

Texas InstrumentsIn Stock: 3746LM2671M-5.0 Datasheet

Current PartRFQ

LM2671M-5.0/NOPB

Texas InstrumentsIn Stock: 2940LM2671M-5.0/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2671M-5.0 is determined by strict equivalence across the following critical parameters:

• Topology: Buck (step-down) switching regulator
• Output voltage: Fixed 5V
• Output current capability: 500mA minimum
• Input voltage range: 6.5V to 40V
• Package type: 8-SOIC (0.154", 3.90mm Width)
• Switching frequency: 260kHz
• Operating temperature range: -40°C to 125°C
• Synchronous rectifier configuration: Non-synchronous
• RoHS and environmental compliance: ROHS3 Compliant

Parts meeting all these criteria are considered direct functional equivalents and may be substituted without circuit redesign.

Parameter Comparison

Engineering Selection Recommendations

The LM2671M-5.0/NOPB is the direct equivalent substitute for the LM2671M-5.0. Both parts are manufactured by Texas Instruments and share identical electrical and mechanical specifications. The primary distinction is product status: the original LM2671M-5.0 is designated Last Time Buy, while the LM2671M-5.0/NOPB maintains Active status. The "/NOPB" suffix indicates lead-free plating without lead (Pb), consistent with ROHS3 compliance requirements. The LM2671M-5.0/NOPB is supplied in Tube packaging, whereas the original part packaging is not specified. Both parts maintain identical RoHS and environmental compliance certifications, making the LM2671M-5.0/NOPB suitable for direct substitution in new designs and production continuity.

Frequently Asked Questions (FAQ)

Q: Can the LM2671M-5.0/NOPB replace the LM2671M-5.0 in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The LM2671M-5.0/NOPB is the recommended substitute due to its Active product status and continued availability.

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

A: The "/NOPB" designation specifies lead-free plating without lead (Pb). This is a packaging and manufacturing specification that does not affect electrical performance or compatibility.

Q: Are there differences in packaging between these parts?

A: The LM2671M-5.0/NOPB is supplied in Tube packaging. The original LM2671M-5.0 packaging specification is not provided. Both use the same 8-SOIC (0.154", 3.90mm Width) case.

Q: Why is the original part marked Last Time Buy?

A: Last Time Buy status indicates that the manufacturer is discontinuing this specific part number. The LM2671M-5.0/NOPB provides continuity for designs requiring this functionality.

Q: Are both parts RoHS compliant?

A: Yes. Both the LM2671M-5.0 and LM2671M-5.0/NOPB are ROHS3 Compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What is the minimum input voltage requirement?

A: The minimum input voltage is 6.5V. The maximum input voltage is 40V, providing a wide operating range suitable for various power supply configurations.

Q: What is the output current capability?

A: Both parts deliver a fixed 500mA output current at 5V output voltage.