LM2575D2T-015 Equivalent & Substitute Parts

Part Overview

The LM2575D2T-015 is a buck switching regulator IC from onsemi, designed for step-down voltage conversion with a fixed 15V output and 1A output current capability. The device operates across an input voltage range of 4.75V to 40V and features a 52kHz switching frequency in a TO-263-6 D2PAK package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

LM2575D2T-015

onsemiIn Stock: 1132LM2575D2T-015 Datasheet

Current PartRFQ

LM2575D2T-15R4G

onsemiIn Stock: 12493LM2575D2T-15R4G Datasheet

DirectRFQ

TL2575-15IKTTR

Texas InstrumentsIn Stock: 1930TL2575-15IKTTR Datasheet

DirectRFQ

TL2575HV-15IKTTR

Texas InstrumentsIn Stock: 1402TL2575HV-15IKTTR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM2575D2T-015 are qualified based on matching the following critical parameters: step-down buck topology, positive fixed 15V output, 1A output current, 52kHz switching frequency, TO-263-6 D2PAK package, and -40°C to 125°C operating temperature range. Parts are categorized as direct substitutes when all electrical and mechanical specifications align exactly, and as similar substitutes when minor parameter variations exist within acceptable engineering tolerances.

Direct Substitutes maintain identical input voltage range (4.75V to 40V), package configuration, and all functional specifications.

Similar Substitutes may feature extended input voltage ratings or different moisture sensitivity levels while preserving core functionality and package compatibility.

Parameter Comparison

Engineering Selection Recommendations

LM2575D2T-15R4G is the primary direct substitute for the obsolete LM2575D2T-015. This onsemi part maintains identical electrical specifications and package configuration while offering active product status and ROHS3 compliance. The tape and reel packaging format suits high-volume production environments. MSL rating of 1 provides superior moisture handling compared to alternatives.

TL2575-15IKTTR from Texas Instruments provides a functionally equivalent alternative with active product status and ROHS3 compliance. This part matches all core electrical parameters and package requirements. MSL rating of 3 requires adherence to 168-hour moisture exposure limits during storage and handling.

TL2575HV-15IKTTR extends the maximum input voltage rating to 60V, accommodating applications requiring higher input voltage tolerance. This Texas Instruments part maintains all other specifications identical to the base LM2575D2T-015 and offers active product status with ROHS3 compliance. The higher input voltage rating makes this suitable for designs with variable or elevated supply voltages.

Frequently Asked Questions (FAQ)

Q: Can LM2575D2T-15R4G directly replace LM2575D2T-015 in existing designs?

A: Yes. LM2575D2T-15R4G is a direct substitute with identical electrical specifications, output voltage, output current, input voltage range, switching frequency, and package configuration. The primary difference is active product status and improved compliance certifications.

Q: What is the difference between the onsemi and Texas Instruments substitutes?

A: Both manufacturers provide functionally equivalent buck regulators with 15V fixed output and 1A current capability. onsemi's LM2575D2T-15R4G maintains the original design lineage with MSL-1 rating. Texas Instruments' TL2575-15IKTTR and TL2575HV-15IKTTR offer alternative sourcing with MSL-3 ratings and extended input voltage options.

Q: Should I use TL2575HV-15IKTTR if my application only requires 40V input maximum?

A: TL2575HV-15IKTTR is suitable for applications with input voltages up to 40V. The extended 60V maximum rating provides design margin for transient conditions or future application variations without compromising performance at lower voltages.

Q: What does MSL rating mean for component selection?

A: MSL (Moisture Sensitivity Level) indicates moisture exposure limits during storage and handling. MSL-1 (unlimited) allows indefinite storage without moisture control. MSL-3 (168 hours) requires components to be used within 168 hours of package opening or stored in controlled humidity environments. Select based on your manufacturing and storage capabilities.

Q: Are all substitutes available in tape and reel packaging?

A: LM2575D2T-15R4G, TL2575-15IKTTR, and TL2575HV-15IKTTR are all supplied in tape and reel format suitable for automated assembly. The original LM2575D2T-015 was available in bulk packaging, which is no longer standard for active products.

Q: Do all substitutes meet RoHS compliance requirements?

A: LM2575D2T-15R4G, TL2575-15IKTTR, and TL2575HV-15IKTTR are all ROHS3 compliant. The original LM2575D2T-015 is RoHS non-compliant. Select ROHS3-compliant alternatives for applications requiring environmental compliance.