LM2641MTC-ADJ Equivalent & Substitute Parts

Part Overview

The LM2641MTC-ADJ is a Dual Power Supply Controller manufactured by Texas Instruments, designed for applications requiring independent control of multiple power supply rails. This device operates across an input voltage range of 5.5V to 30V and is housed in a 28-TSSOP surface mount package. The part is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design considerations.

Substiute Parts

LM2641MTC-ADJ

Texas InstrumentsIn Stock: 3337LM2641MTC-ADJ Datasheet

Current PartRFQ

LM2641MTC-ADJ/NOPB

Texas InstrumentsIn Stock: 2408LM2641MTC-ADJ/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LM2641MTC-ADJ is determined by strict alignment of the following electrical and mechanical parameters:

• Package Compatibility: 28-TSSOP surface mount package with identical pinout and footprint
• Voltage Specifications: Input and supply voltage range of 5.5V to 30V
• Operating Temperature Range: 0°C to 125°C
• Functional Classification: Dual Power Supply Controller topology
• Moisture Sensitivity: MSL 3 rating (168 Hours)

The identified substitute LM2641MTC-ADJ/NOPB maintains all critical electrical and mechanical parameters while offering improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The LM2641MTC-ADJ/NOPB serves as a direct functional equivalent to the LM2641MTC-ADJ. Both devices share identical electrical specifications, package geometry, and thermal operating range. The primary distinction lies in compliance status: the LM2641MTC-ADJ/NOPB achieves ROHS3 compliance, whereas the original part is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the LM2641MTC-ADJ/NOPB is the appropriate selection. Both parts carry product status designations indicating limited availability or design restrictions, necessitating evaluation of long-term supply chain viability for production applications.

Frequently Asked Questions (FAQ)

Q: Can LM2641MTC-ADJ/NOPB be used as a direct replacement for LM2641MTC-ADJ?

A: Yes. Both parts maintain identical electrical specifications (5.5V to 30V input/supply voltage), operating temperature range (0°C to 125°C), and 28-TSSOP package geometry. Pin-for-pin compatibility is confirmed.

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

A: The "/NOPB" designation indicates the part is supplied without lead (Pb) plating, reflecting RoHS3 compliance. This affects material composition and environmental compliance status but does not alter electrical performance or package dimensions.

Q: Are there differences in moisture sensitivity between these parts?

A: No. Both parts carry identical MSL 3 ratings (168 Hours), requiring equivalent handling and storage protocols.

Q: Which part should be selected for new designs?

A: Both parts carry product status designations limiting their use in new designs. The LM2641MTC-ADJ/NOPB is classified as "Not For New Designs," while the LM2641MTC-ADJ is "Obsolete." For new applications, evaluation of alternative controller architectures is recommended.

Q: Are there packaging differences between these parts?

A: The LM2641MTC-ADJ is supplied in standard packaging, while LM2641MTC-ADJ/NOPB is supplied in Tube packaging. Both maintain identical component dimensions and footprint specifications.