LM2576D2T-015 Equivalent & Substitute Parts

Part Overview

The LM2576D2T-015 is a buck switching regulator IC from onsemi, designed for step-down voltage conversion with a fixed 15V output and 3A current capacity. This component operates across a 7V to 40V input range with a 52kHz switching frequency and is housed in a TO-263-6 D2PAK package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

LM2576D2T-015

onsemiIn Stock: 977LM2576D2T-015 Datasheet

Current PartRFQ

LM2576D2T-15G

onsemiIn Stock: 70793LM2576D2T-15G Datasheet

DirectRFQ

TL2575-15IKTTR

Texas InstrumentsIn Stock: 1930TL2575-15IKTTR Datasheet

SimilarRFQ

TL2575HV-15IKTTR

Texas InstrumentsIn Stock: 1402TL2575HV-15IKTTR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2576D2T-015 is determined by the following critical parameters:

Direct Substitutes must match:

• Fixed output voltage: 15V
• Package type: TO-263-6, D2PAK (5 Leads + Tab)
• Mounting type: Surface Mount
• Switching frequency: 52kHz
• Operating temperature range: -40°C to 125°C
• Output configuration: Positive or Negative

Similar Substitutes may vary in:

• Output current capacity (lower acceptable if design permits)
• Input voltage range (higher maximum acceptable)
• Output configuration (Positive acceptable for Positive or Negative designs)
• Product status (Active preferred over Obsolete)
• RoHS compliance (ROHS3 Compliant preferred)

Parameter Comparison

Engineering Selection Recommendations

LM2576D2T-15G (Direct Substitute)

This onsemi part is the primary equivalent for the LM2576D2T-015. It maintains identical electrical specifications, output current capacity (3A), input voltage range (7V to 40V), and package configuration. The LM2576D2T-15G is currently in active production status with ROHS3 compliance, addressing the obsolescence and regulatory limitations of the original part. Inventory availability is substantial (70,700 units), supporting production continuity.

TL2575-15IKTTR and TL2575HV-15IKTTR (Similar Substitutes)

These Texas Instruments alternatives provide functional equivalence with design trade-offs. Both parts maintain the 15V fixed output, 52kHz switching frequency, and identical package type. The primary limitation is reduced output current capacity (1A versus 3A), restricting use to applications requiring lower current delivery. The TL2575HV-15IKTTR extends the maximum input voltage to 60V, providing enhanced input range flexibility compared to the original 40V specification. Both parts are ROHS3 compliant and actively produced. Selection of these alternatives requires verification that application current requirements do not exceed 1A.

Frequently Asked Questions (FAQ)

Q: Can the LM2576D2T-15G directly replace the LM2576D2T-015 without circuit modification?

A: Yes. The LM2576D2T-15G is a direct substitute with identical electrical and mechanical specifications. No circuit redesign is required. The primary differences are product status (Active versus Obsolete) and RoHS compliance (ROHS3 versus Non-Compliant).

Q: What are the limitations when using TL2575-15IKTTR or TL2575HV-15IKTTR as substitutes?

A: The output current capacity is reduced from 3A to 1A. These parts are suitable only for applications with maximum current draw of 1A or less. If your design requires the full 3A output capacity, these alternatives are not appropriate. Both parts are manufactured by Texas Instruments and maintain the same 15V output voltage and 52kHz switching frequency.

Q: Are the Texas Instruments alternatives pin-compatible with the original part?

A: Yes. All substitute parts use the TO-263-6 D2PAK package with identical pinout and lead configuration. Physical board layout compatibility is maintained.

Q: Does the TL2575HV-15IKTTR offer any advantage over the TL2575-15IKTTR?

A: The TL2575HV-15IKTTR supports a maximum input voltage of 60V compared to 40V for the TL2575-15IKTTR. If your application requires input voltages above 40V, the HV variant is necessary. Both parts share identical output current (1A) and output voltage (15V) specifications.

Q: What is the moisture sensitivity level difference between the original part and substitutes?

A: The LM2576D2T-015 has MSL 1 (Unlimited). The LM2576D2T-15G maintains MSL 1. The Texas Instruments alternatives (TL2575-15IKTTR and TL2575HV-15IKTTR) have MSL 3 (168 Hours), requiring controlled storage and handling conditions during manufacturing.

Q: Is RoHS compliance a critical factor for part selection?

A: RoHS compliance depends on your application and regulatory requirements. The LM2576D2T-015 is RoHS Non-Compliant. The LM2576D2T-15G and both Texas Instruments alternatives are ROHS3 Compliant. If your end product requires RoHS certification, select from the compliant alternatives.