LM2575D2T-015G Equivalent & Substitute Parts

Part Overview

The LM2575D2T-015G is a buck switching regulator IC from onsemi, delivering a fixed 15V output at 1A with input voltage range of 4.75V to 40V. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part is housed in a TO-263-6 D2PAK package with 5 leads plus tab, suitable for surface mount applications across industrial and consumer electronics.

Substiute Parts

LM2575D2T-015G

onsemiIn Stock: 908LM2575D2T-015G Datasheet

Current PartRFQ

LM2575D2T-15R4G

onsemiIn Stock: 12493LM2575D2T-15R4G Datasheet

SimilarRFQ

TL2575-15IKTTR

Texas InstrumentsIn Stock: 1930TL2575-15IKTTR Datasheet

DirectRFQ

TL2575HV-15IKTTR

Texas InstrumentsIn Stock: 1402TL2575HV-15IKTTR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2575D2T-015G is determined by the following critical parameters:

• Fixed output voltage of 15V
• Output current capability of 1A
• Input voltage range minimum of 4.75V
• Switching frequency of 52kHz
• Surface mount package compatibility (TO-263-6 D2PAK or equivalent)
• Operating temperature range of -40°C to 125°C

Three substitute parts meet these criteria:

1. LM2575D2T-15R4G (onsemi) – Direct onsemi equivalent with identical electrical specifications and packaging
2. TL2575-15IKTTR (Texas Instruments) – Cross-manufacturer substitute with matching electrical performance and package footprint
3. TL2575HV-15IKTTR (Texas Instruments) – Extended input voltage variant supporting up to 60V input

Parameter Comparison

Engineering Selection Recommendations

LM2575D2T-15R4G is the primary substitute for direct replacement. This onsemi part maintains identical electrical specifications and packaging while offering active product status and ROHS3 compliance. The MSL rating of 1 provides superior moisture handling compared to the original obsolete part.

TL2575-15IKTTR serves as a cross-manufacturer alternative from Texas Instruments with equivalent electrical performance and package compatibility. This part is actively produced and ROHS3 compliant, though the MSL rating of 3 requires controlled storage conditions (168 hours maximum at 60% relative humidity).

TL2575HV-15IKTTR is suitable for applications requiring extended input voltage tolerance up to 60V. This variant maintains all other electrical parameters while providing additional headroom for input voltage fluctuations. Like the standard TL2575 variant, it carries ROHS3 compliance and MSL-3 rating.

All three substitutes are surface mount compatible with the original D2PAK footprint and support the same operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can LM2575D2T-15R4G directly replace LM2575D2T-015G without PCB modifications?

A: Yes. Both parts share identical electrical specifications, switching frequency, output voltage, output current, and TO-263-6 D2PAK package footprint. No PCB layout changes are required.

Q: What is the difference between TL2575-15IKTTR and TL2575HV-15IKTTR?

A: The primary difference is maximum input voltage. TL2575-15IKTTR supports 4.75V to 40V input, while TL2575HV-15IKTTR extends this to 4.75V to 60V. All other electrical parameters remain identical. Select TL2575HV-15IKTTR if your application requires higher input voltage tolerance.

Q: Are there packaging differences between onsemi and Texas Instruments variants?

A: Both manufacturers use TO-263 package variants. onsemi designates it as D2PAK-5, while Texas Instruments uses DDPAK-5 nomenclature. These are functionally equivalent package types with identical pin configurations and thermal characteristics.

Q: What does MSL rating mean for component selection?

A: MSL (Moisture Sensitivity Level) indicates storage and handling requirements. MSL-1 (unlimited) allows indefinite storage at any humidity. MSL-3 (168 hours) requires controlled storage at ≤60% relative humidity for maximum 168 hours after packaging. LM2575D2T-15R4G offers superior moisture tolerance with MSL-1 rating.

Q: Are all substitute parts ROHS3 compliant?

A: LM2575D2T-15R4G, TL2575-15IKTTR, and TL2575HV-15IKTTR are all ROHS3 compliant. The original LM2575D2T-015G does not specify RoHS status due to its obsolete classification.

Q: Which substitute should I select for new production designs?

A: LM2575D2T-15R4G is recommended for new designs requiring onsemi sourcing. For multi-source strategies, TL2575-15IKTTR provides Texas Instruments availability. If input voltage exceeds 40V, use TL2575HV-15IKTTR.