LM2575D2T-005 Equivalent & Substitute Parts

Part Overview

The LM2575D2T-005 is a switching regulator IC manufactured by onsemi, designed for step-down (buck) voltage regulation applications. This device delivers 1A output current at a fixed 5V output from input voltages ranging from 4.75V to 40V. The part is classified as obsolete, making identification of active equivalent alternatives essential for new designs and ongoing production support.

Substiute Parts

LM2575D2T-005

onsemiIn Stock: 966LM2575D2T-005 Datasheet

Current PartRFQ

LM2575D2T-5G

onsemiIn Stock: 4409LM2575D2T-5G Datasheet

DirectRFQ

TL2575-05IKTTR

Texas InstrumentsIn Stock: 21640TL2575-05IKTTR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM2575D2T-005 are qualified based on the following critical parameters:

• Output Voltage & Current: Fixed 5V output at 1A minimum
• Input Voltage Range: 4.75V to 40V compatibility
• Switching Frequency: 52kHz operation
• Package Type: D2PAK (TO-263-6) with 5 leads plus tab
• Topology: Buck (step-down) configuration
• Mounting Type: Surface mount

Two active alternatives meet these electrical and mechanical specifications: the LM2575D2T-5G (onsemi) and the TL2575-05IKTTR (Texas Instruments). Both devices are pin-compatible, functionally equivalent, and available in the same D2PAK package footprint.

Parameter Comparison

Engineering Selection Recommendations

LM2575D2T-5G (onsemi): This substitute maintains the same manufacturer lineage as the obsolete LM2575D2T-005. It is ROHS3 compliant and carries an MSL rating of 1 (unlimited moisture sensitivity), providing superior handling flexibility compared to the original part. This option is recommended for designs requiring continuity with onsemi product families and maximum supply chain availability (4,344 units in stock).

TL2575-05IKTTR (Texas Instruments): This alternative from Texas Instruments is functionally and electrically identical across all critical parameters. It is ROHS3 compliant and widely available (21,618 units in stock). The MSL rating of 3 (168 hours) requires standard moisture control during storage and handling. This option is suitable for applications where multi-source qualification is required or where Texas Instruments components are preferred in the supply chain.

Both substitutes are active products with established production support, eliminating the obsolescence risk associated with the original LM2575D2T-005.

Frequently Asked Questions (FAQ)

Q: Can the LM2575D2T-5G directly replace the LM2575D2T-005 in existing designs?

A: Yes. Both parts are pin-compatible in the D2PAK package and share identical electrical specifications for output voltage (5V), output current (1A), input voltage range (4.75V to 40V), and switching frequency (52kHz). No circuit modifications are required.

Q: What is the difference between the LM2575D2T-5G and TL2575-05IKTTR?

A: The primary differences are manufacturer (onsemi vs. Texas Instruments) and MSL rating (1 vs. 3). Electrically and functionally, both devices are equivalent. The choice depends on supply chain strategy and moisture handling requirements.

Q: Does the MSL rating difference between the substitutes affect circuit performance?

A: No. MSL (Moisture Sensitivity Level) ratings affect component handling and storage procedures, not electrical performance. MSL 1 (unlimited) allows indefinite storage without moisture control. MSL 3 (168 hours) requires desiccant storage and limits shelf life after opening. Both ratings are standard for surface-mount components.

Q: Are both substitutes RoHS compliant?

A: Yes. Both the LM2575D2T-5G and TL2575-05IKTTR are ROHS3 compliant, whereas the original LM2575D2T-005 is RoHS non-compliant. This makes the substitutes suitable for applications with RoHS requirements.

Q: Can I use these substitutes in new production designs?

A: Yes. Both substitutes are active products with established manufacturing support. They are recommended for new designs to avoid obsolescence issues associated with the LM2575D2T-005.

Q: Are there any package or pinout differences between these parts?

A: No. All three parts use the identical D2PAK (TO-263-6) package with 5 leads plus tab. Pinout and PCB footprint compatibility is guaranteed.