IRS2540CD Equivalent & Substitute Parts

Part Overview

The IRS2540CD is an LED Driver IC manufactured by Infineon Technologies, designed for buck converter applications with output dimming capability. This component operates at up to 200V and is classified as a Power Management (PMIC) device. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and production continuity.

Substiute Parts

IRS2540CD

Infineon TechnologiesIn Stock: 969IRS2540CD Datasheet

Current PartRFQ

IRS25411STRPBF

Infineon TechnologiesIn Stock: 30236IRS25411STRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The IRS25411STRPBF serves as the manufacturer-recommended substitute for the obsolete IRS2540CD. Substitution eligibility is determined by the following critical parameters:

• Functional Category: Both devices are LED Driver ICs within the Power Management (PMIC) classification
• Application Type: Both support buck converter (step-down) topology with PWM dimming capability
• Regulatory Compliance: Both maintain REACH Unaffected status and EAR99 ECCN classification
• Tariff Classification: Both share identical HTSUS code 8542.39.0001
• Manufacturer Consistency: Both are manufactured by Infineon Technologies, ensuring design continuity and support

The IRS25411STRPBF is actively produced and available in high inventory quantities, providing reliable supply for replacement and new designs.

Parameter Comparison

Engineering Selection Recommendations

The IRS25411STRPBF is the designated manufacturer substitute for the obsolete IRS2540CD. Selection of this alternative is supported by:

• Active Product Status: The IRS25411STRPBF maintains active production status with substantial inventory availability (30,200 pcs), ensuring long-term supply security
• Regulatory Alignment: Both components share identical REACH and ECCN classifications, maintaining compliance requirements across supply chains
• Functional Equivalence: Both devices operate as LED Driver ICs with buck topology and PWM dimming, fulfilling the core application requirements
• Manufacturer Support: Infineon Technologies' designation of IRS25411STRPBF as the direct substitute provides engineering validation and design continuity

For applications currently using the IRS2540CD, transition to the IRS25411STRPBF is the appropriate path for design updates and production continuity.

Frequently Asked Questions (FAQ)

Q: Why is the IRS2540CD being replaced? A: The IRS2540CD is classified as obsolete. The IRS25411STRPBF is the active, manufacturer-recommended substitute that maintains functional equivalence for LED driver and buck converter applications.

Q: Are there electrical compatibility concerns between IRS2540CD and IRS25411STRPBF? A: Both devices are LED Driver ICs with buck topology and PWM dimming capability, classified under the same Power Management (PMIC) category. Both maintain identical regulatory classifications (REACH Unaffected, EAR99 ECCN).

Q: What is the package difference? A: The IRS25411STRPBF is supplied in 8-SOIC (0.154", 3.90mm Width) surface mount packaging. Package specifications for the IRS2540CD are not provided in the technical data.

Q: Does the IRS25411STRPBF meet RoHS requirements? A: Yes, the IRS25411STRPBF is ROHS3 Compliant.

Q: What is the supply status of the IRS25411STRPBF? A: The IRS25411STRPBF is actively produced with 30,200 pcs available in new original stock, providing reliable supply for immediate and ongoing requirements.

Q: Are there other substitute options listed? A: The IRS25411STRPBF documentation references additional alternatives (LM3401MM/NOPB, LM3401MMX/NOPB, LT3922EUFD#PBF, LT3743IFE#PBF). However, the manufacturer-recommended primary substitute is IRS25411STRPBF.