LM2675N-ADJ Equivalent & Substitute Parts

Part Overview

The LM2675N-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 with an input voltage range of 6.5V to 40V and adjustable output from 1.21V to 37V, operating at a switching frequency of 260kHz. The part is classified as obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

LM2675N-ADJ

Texas InstrumentsIn Stock: 2401LM2675N-ADJ Datasheet

Current PartRFQ

LM2675N-ADJ/NOPB

Texas InstrumentsIn Stock: 2117LM2675N-ADJ/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LM2675N-ADJ is determined by strict equivalence across the following critical parameters:

• Input voltage range: 6.5V to 40V minimum
• Output voltage adjustability: 1.21V to 37V minimum
• Output current capability: 1A minimum
• Switching frequency: 260kHz
• Package type: 8-DIP (0.300", 7.62mm) through-hole
• Topology: Buck converter with positive adjustable output
• Number of outputs: Single output configuration

The LM2675N-ADJ/NOPB qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The LM2675N-ADJ/NOPB is the direct functional equivalent of the LM2675N-ADJ. Both devices share identical electrical and mechanical specifications, ensuring pin-for-pin compatibility and equivalent circuit performance.

The LM2675N-ADJ/NOPB is preferred for new designs and ongoing production due to its active product status and ROHS3 compliance certification. The original LM2675N-ADJ, classified as obsolete, presents supply chain risk and does not meet current RoHS requirements.

For applications requiring the LM2675N-ADJ, transition to the LM2675N-ADJ/NOPB without circuit modification. Both devices operate identically within the specified electrical parameters and thermal range.

Frequently Asked Questions (FAQ)

Q: Can the LM2675N-ADJ/NOPB replace the LM2675N-ADJ in existing designs?

A: Yes. The LM2675N-ADJ/NOPB is a direct substitute with identical electrical specifications, output voltage range, current rating, switching frequency, and 8-DIP package configuration. No circuit redesign is required.

Q: What is the difference between LM2675N-ADJ and LM2675N-ADJ/NOPB?

A: The primary differences are product status and compliance. The LM2675N-ADJ is obsolete and RoHS non-compliant. The LM2675N-ADJ/NOPB is active and ROHS3 compliant. Electrical performance and pinout are identical.

Q: Are there package differences between these parts?

A: Both parts use the 8-DIP (0.300", 7.62mm) through-hole package. The LM2675N-ADJ/NOPB is supplied in tube packaging, while the original part uses standard packaging. This does not affect electrical or mechanical compatibility.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching input voltage range (6.5V–40V), adjustable output voltage (1.21V–37V), 1A output current, 260kHz switching frequency, 8-DIP package type, and single positive adjustable output configuration.

Q: Is the LM2675N-ADJ/NOPB suitable for new product designs?

A: Yes. The active product status and ROHS3 compliance make the LM2675N-ADJ/NOPB the appropriate choice for new designs requiring a 1A adjustable buck regulator in the 8-DIP package.