LM2941SX Equivalent & Substitute Parts Reference

Part Overview

The LM2941SX, manufactured by Texas Instruments, is a linear voltage regulator IC categorized under Power Management (PMIC). It features a positive adjustable output, delivering up to 1A output current with low dropout and comprehensive protection features. This part is presented in a surface-mount TO-263 (DDPAK-5) package and supports an input voltage up to 26V, with an output adjustable between 5V and 20V. The LM2941SX is listed as obsolete, creating a need for equivalent or replacement models to ensure ongoing support and supply continuity in designs where this specific regulator is used.

Substiute Parts

LM2941SX

Texas InstrumentsIn Stock: 88383LM2941SX Datasheet

Current PartRFQ

LM2941SX/NOPB

Texas InstrumentsIn Stock: 16298LM2941SX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined strictly by identical alignment of functional, electrical, and mechanical parameters. For linear voltage regulators in this category, replacement suitability is based on the following parameters: output configuration, output type, number of regulators, maximum input voltage, output voltage range, dropout voltage at rated current, output current, quiescent current, supply current limit, control and protection features, operating temperature range, package type, RoHS and REACH compliance, and moisture sensitivity level. Only parts with matching or equivalent specifications in these fields are included as valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

LM2941SX is designated as obsolete, while LM2941SX/NOPB remains active. Both share identical compliance certifications, including ROHS3 and REACH status, as well as MSL classification. When selecting a substitute, it is essential to confirm continued regulatory conformance and availability, provided all parameters match as noted above.

Frequently Asked Questions (FAQ)

Q1: What makes LM2941SX/NOPB a valid equivalent for LM2941SX?
A1: LM2941SX/NOPB matches all key electrical, mechanical, and regulatory parameters with the LM2941SX, including package, output range, protection features, and compliance status.

Q2: Are the packages and footprint identical between LM2941SX and LM2941SX/NOPB?
A2: Both are available in the TO-263-6, D2PAK (5 Leads + Tab), TO-263BA case style, and use the TO-263 (DDPAK-5) supplier device package suitable for direct replacement in applications specified for LM2941SX.

Q3: Is RoHS and REACH compliance maintained with the substitute?
A3: Both parts maintain ROHS3 compliance and are REACH affected, supporting equivalent regulatory status.

Q4: Does substituting LM2941SX with LM2941SX/NOPB affect supply logistics or inventory handling?
A4: Moisture Sensitivity Level (MSL 3, 168 Hours) and packaging types remain consistent between both part numbers.

Q5: Can both parts be used within the same operating temperature range?
A5: Yes, both are rated for operation from -40°C to 125°C.