LM2576T-015 Equivalent & Substitute Parts

Part Overview

The LM2576T-015 is a buck switching regulator IC manufactured by onsemi, designed for step-down voltage conversion applications. It delivers a fixed 15V output at 3A from input voltages ranging from 7V to 40V, operating at a switching frequency of 52kHz. The device is housed in a TO-220-5 through-hole package and supports both positive and negative output configurations.

The LM2576T-015 is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support legacy system maintenance or redesigns where component availability is constrained.

Substiute Parts

LM2576T-015

onsemiIn Stock: 2426LM2576T-015 Datasheet

Current PartRFQ

LM2576T-15G

onsemiIn Stock: 2724LM2576T-15G Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2576T-015 is determined by the following critical parameters:

• Output Voltage: Must be fixed at 15V
• Output Current: Must be rated for 3A
• Input Voltage Range: Must accommodate 7V to 40V
• Topology: Must be buck (step-down) configuration
• Package: Must be TO-220-5 through-hole
• Switching Frequency: Must operate at 52kHz
• Output Configuration: Must support positive or negative output

The LM2576T-15G qualifies as a direct substitute, meeting all electrical and mechanical specifications while offering improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The LM2576T-15G is the qualified substitute for the LM2576T-015. Both devices are obsolete and manufactured by onsemi with identical electrical specifications and package configurations.

The primary distinction is compliance status: the LM2576T-15G achieves ROHS3 compliance, whereas the LM2576T-015 is RoHS non-compliant. For applications subject to RoHS regulations or environmental compliance requirements, the LM2576T-15G is the appropriate selection. Both parts share identical functional performance, thermal characteristics, and mechanical compatibility.

Current inventory availability shows 2640 units of LM2576T-15G in stock versus 2400 units of LM2576T-015, providing supply flexibility for component procurement.

Frequently Asked Questions (FAQ)

Q: Can the LM2576T-15G replace the LM2576T-015 in existing designs?

A: Yes. The LM2576T-15G is electrically and mechanically identical to the LM2576T-015. Both devices deliver 15V at 3A, operate across 7V to 40V input, use the same TO-220-5 package, and function at 52kHz switching frequency. Direct substitution is possible without circuit modification.

Q: What is the difference between these two parts?

A: The LM2576T-15G is ROHS3 compliant, while the LM2576T-015 is RoHS non-compliant. This is the only material difference. Electrical performance and thermal specifications are identical.

Q: Are there any package or mounting differences?

A: No. Both parts use TO-220-5 through-hole packaging with identical pin configurations and mechanical dimensions. PCB layout and thermal management requirements remain unchanged.

Q: Why is the LM2576T-015 marked as obsolete?

A: Both the LM2576T-015 and LM2576T-15G are classified as obsolete by onsemi. For new designs or long-term supply assurance, evaluation of current-generation buck regulators from onsemi's product portfolio is recommended.

Q: Which part should I select for new designs?

A: Selection depends on compliance requirements. For RoHS-regulated applications, the LM2576T-15G is the appropriate choice. For legacy system maintenance or applications without RoHS constraints, either part is functionally equivalent.