LM2672LD-ADJ Equivalent & Substitute Parts

Part Overview

The LM2672LD-ADJ is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with positive adjustable output. The device delivers 1A output current across an input voltage range of 6.5V to 40V, with adjustable output voltage from 1.21V to 37V at a switching frequency of 260kHz.

The LM2672LD-ADJ carries an Obsolete product status. 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

LM2672LD-ADJ

Texas InstrumentsIn Stock: 3448LM2672LD-ADJ Datasheet

Current PartRFQ

LM2672LD-ADJ/NOPB

Texas InstrumentsIn Stock: 5010LM2672LD-ADJ/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2672LD-ADJ is determined by strict equivalence across the following critical parameters:

• Function and topology (Step-Down Buck regulator)
• Output configuration (Positive adjustable)
• Electrical specifications (Input voltage range 6.5V–40V, output voltage 1.21V–37V, 1A output current)
• Switching frequency (260kHz)
• Package type (16-WFDFN Exposed Pad / 16-WSON 5x5)
• Operating temperature range (-40°C ~ 125°C)
• Absence of synchronous rectifier

The LM2672LD-ADJ/NOPB qualifies as a direct substitute based on identical electrical and mechanical specifications. The primary distinction is packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

The LM2672LD-ADJ/NOPB is the direct substitute for the obsolete LM2672LD-ADJ. Both devices are electrically and mechanically identical across all functional parameters.

Selection between these parts should be based on:

• Product status: The LM2672LD-ADJ/NOPB carries Active status, ensuring ongoing availability and support from Texas Instruments.
• Compliance requirements: The LM2672LD-ADJ/NOPB meets ROHS3 compliance, whereas the original part is RoHS non-compliant. Applications subject to RoHS regulations must use the compliant variant.
• Packaging format: The LM2672LD-ADJ/NOPB is supplied in Tape & Reel format, suitable for automated assembly. The original part is supplied in bulk format.
• Moisture sensitivity: The LM2672LD-ADJ/NOPB has MSL 3 (168 hours), requiring controlled storage conditions. The original part has MSL 1 (unlimited shelf life).

For new designs and ongoing production, the LM2672LD-ADJ/NOPB is the recommended selection.

Frequently Asked Questions (FAQ)

Q: Can the LM2672LD-ADJ/NOPB be used as a direct replacement for the LM2672LD-ADJ?

A: Yes. Both devices are electrically and mechanically identical. The LM2672LD-ADJ/NOPB differs only in product status (Active vs. Obsolete), packaging format (Tape & Reel vs. Bulk), RoHS compliance (ROHS3 vs. non-compliant), and moisture sensitivity level (MSL 3 vs. MSL 1). Pin configuration, electrical performance, and package dimensions are identical.

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

A: The "/NOPB" suffix designates the part as supplied in Tape & Reel packaging without plating on the leads. This is standard for high-volume automated assembly operations.

Q: Are there any compatibility concerns when switching from LM2672LD-ADJ to LM2672LD-ADJ/NOPB?

A: No compatibility concerns exist at the circuit level. Both parts operate identically within the specified electrical and thermal parameters. Handling and storage procedures differ due to the MSL 3 rating of the substitute part, requiring moisture control during storage and handling.

Q: Which part should be specified for new designs?

A: The LM2672LD-ADJ/NOPB should be specified for new designs. The original LM2672LD-ADJ is Obsolete and may face supply constraints.

Q: Does the RoHS compliance difference affect circuit performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical performance. Both parts meet identical electrical specifications.

Q: What is the significance of the MSL rating difference?

A: MSL (Moisture Sensitivity Level) indicates the maximum time a component can be exposed to ambient conditions (typically 30°C, 85% relative humidity) before requiring baking. MSL 1 (unlimited) allows indefinite storage without special handling. MSL 3 (168 hours) requires controlled storage and baking procedures before reflow soldering. This affects supply chain logistics and assembly procedures but not circuit performance.