LM2672M-3.3 Equivalent & Substitute Parts

Part Overview

The LM2672M-3.3 is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with a fixed 3.3V output at 1A maximum current. This device operates across a wide input voltage range of 6.5V to 40V and is housed in an 8-SOIC surface mount package. The main part number LM2672M-3.3 carries a Last Time Buy product status, indicating discontinued production. Identifying equivalent substitute parts is necessary to ensure continued design support and procurement availability for new applications or production runs.

Substiute Parts

LM2672M-3.3

Texas InstrumentsIn Stock: 2319LM2672M-3.3 Datasheet

Current PartRFQ

LM2672M-3.3/NOPB

Texas InstrumentsIn Stock: 1707LM2672M-3.3/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2672M-3.3 is determined by strict equivalence across the following critical parameters:

• Output voltage configuration (fixed 3.3V)
• Output current rating (1A)
• Input voltage operating range (6.5V to 40V minimum and maximum)
• Switching topology (buck converter)
• Package type and pinout (8-SOIC, 0.154" width)
• Operating temperature range (-40°C to 125°C)
• Switching frequency (260kHz)

Only parts meeting all these specifications qualify as direct substitutes. The LM2672M-3.3/NOPB is identified as the manufacturer-recommended equivalent, sharing identical electrical and mechanical characteristics while differing only in packaging format and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The LM2672M-3.3/NOPB is the direct substitute for the LM2672M-3.3. Both parts are ROHS3 compliant and maintain identical electrical specifications and package geometry. The primary distinction is product lifecycle status: the original LM2672M-3.3 is designated Last Time Buy, while the LM2672M-3.3/NOPB maintains Active status with ongoing manufacturer support. For new designs or production continuity, the LM2672M-3.3/NOPB is the appropriate selection. Both parts carry REACH Unaffected status and are classified under ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can the LM2672M-3.3/NOPB be used as a direct replacement for LM2672M-3.3?

A: Yes. Both parts are electrically and mechanically identical, with matching output voltage (3.3V), output current (1A), input voltage range (6.5V to 40V), package type (8-SOIC), and operating temperature range (-40°C to 125°C). The /NOPB designation indicates packaging format and active product status.

Q: What does the Last Time Buy status mean for the LM2672M-3.3?

A: Last Time Buy indicates the manufacturer has discontinued production of this part number. Existing inventory may be available, but no new manufacturing runs are planned. The LM2672M-3.3/NOPB provides continued access to equivalent functionality with active manufacturer support.

Q: Are there any differences in pinout or PCB layout between these parts?

A: No. Both parts use the 8-SOIC package with 0.154" width and identical pinout. PCB layouts designed for LM2672M-3.3 require no modification for LM2672M-3.3/NOPB.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the LM2672M-3.3 and LM2672M-3.3/NOPB are ROHS3 compliant, REACH unaffected, and classified as EAR99 for export control purposes.

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

A: The /NOPB suffix indicates the part is supplied in tube packaging without lead (Pb) plating on the leads, consistent with RoHS requirements. This is a standard packaging designation and does not affect electrical performance or compatibility.