LM2675LD-ADJ Equivalent & Substitute Parts

Part Overview

The LM2675LD-ADJ is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, designed for step-down voltage conversion with positive adjustable output. This 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 LM2675LD-ADJ is classified as obsolete, making identification of active equivalent parts essential for new designs and ongoing production support.

Substiute Parts

LM2675LD-ADJ

Texas InstrumentsIn Stock: 64652LM2675LD-ADJ Datasheet

Current PartRFQ

LM2675LD-ADJ/NOPB

Texas InstrumentsIn Stock: 64536LM2675LD-ADJ/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2675LD-ADJ is determined by strict equivalence across the following electrical and mechanical parameters:

• Input voltage range: 6.5V minimum to 40V maximum
• Output voltage adjustability: 1.21V to 37V
• Output current capability: 1A
• Switching frequency: 260kHz
• Package type: 16-WFDFN Exposed Pad (16-WSON 5x5)
• Operating temperature range: -40°C to 125°C
• Topology: Buck (step-down)
• Output configuration: Positive adjustable

The LM2675LD-ADJ/NOPB qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction between these parts is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The LM2675LD-ADJ/NOPB is the direct active equivalent for the obsolete LM2675LD-ADJ. Both parts share identical electrical performance specifications and package configuration, ensuring functional interchangeability in circuit designs.

The LM2675LD-ADJ/NOPB offers improved compliance status: it is ROHS3 compliant, whereas the original LM2675LD-ADJ is RoHS non-compliant. This distinction is significant for applications subject to RoHS regulations or requiring compliance documentation.

Moisture sensitivity differs between the two parts. The LM2675LD-ADJ carries MSL 1 (unlimited moisture exposure tolerance), while the LM2675LD-ADJ/NOPB carries MSL 3 (168-hour moisture exposure limit). This affects storage, handling, and reflow procedures. MSL 3 components require controlled humidity storage and have defined shelf-life windows after moisture exposure.

For new designs and production transitions, the LM2675LD-ADJ/NOPB is the appropriate selection due to its active product status and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can LM2675LD-ADJ/NOPB replace LM2675LD-ADJ in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The LM2675LD-ADJ/NOPB is the active equivalent with improved compliance status. Existing circuit designs require no modification.

Q: What is the difference between these part numbers?

A: The primary differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. ROHS3 compliant), and moisture sensitivity level (MSL 1 vs. MSL 3). Electrical specifications and package configuration are identical.

Q: Are there any handling differences between these parts?

A: Yes. The LM2675LD-ADJ/NOPB carries MSL 3 rating, requiring controlled humidity storage and adherence to 168-hour moisture exposure limits. The LM2675LD-ADJ has unlimited moisture tolerance (MSL 1). Consult component storage and reflow guidelines for MSL 3 handling procedures.

Q: Is the 16-WFDFN package the same as 16-WSON?

A: Yes. The 16-WFDFN Exposed Pad package is equivalent to the 16-WSON (5x5) supplier device package designation. Both refer to the same physical package configuration.

Q: Can I use these parts interchangeably in production?

A: Yes, with consideration for compliance requirements and moisture handling. For RoHS-regulated applications, the LM2675LD-ADJ/NOPB is required. Ensure storage and reflow procedures comply with MSL 3 specifications.