LM2575TV-015 Equivalent & Substitute Parts

Part Overview

The LM2575TV-015 is a buck switching regulator IC manufactured by onsemi, designed for step-down voltage conversion with a fixed 15V output at 1A maximum current. This device operates across an input voltage range of 4.75V to 40V and is housed in a TO-220-5 through-hole package. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

LM2575TV-015

onsemiIn Stock: 991LM2575TV-015 Datasheet

Current PartRFQ

TL2575HV-15IKV

Texas InstrumentsIn Stock: 1498TL2575HV-15IKV Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2575TV-015 is determined by strict alignment across the following critical parameters:

• Topology & Function: Buck (step-down) switching regulator topology
• Output Configuration: Positive fixed output at 15V
• Current Rating: 1A maximum output current
• Switching Frequency: 52kHz operation
• Package: TO-220-5 through-hole form factor
• Temperature Range: -40°C to 125°C junction temperature
• Input Voltage Range: Minimum 4.75V input; maximum input voltage must equal or exceed 40V

The TL2575HV-15IKV manufactured by Texas Instruments meets all substitution criteria. This part maintains electrical equivalence across all specified parameters while offering enhanced input voltage capability (60V maximum) and active product status with RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The TL2575HV-15IKV is the qualified substitute for the LM2575TV-015. Selection rationale is based on the following factors:

Product Status: The LM2575TV-015 is obsolete, whereas the TL2575HV-15IKV maintains active product status, ensuring long-term availability and manufacturing support.

Regulatory Compliance: The TL2575HV-15IKV is RoHS3 compliant, meeting current environmental and regulatory requirements. The original LM2575TV-015 is non-compliant with modern RoHS standards.

Electrical Equivalence: Both devices operate identically across all specified electrical parameters, including input/output voltage ranges, output current, switching frequency, and temperature operating range.

Enhanced Input Voltage Capability: The TL2575HV-15IKV supports a maximum input voltage of 60V compared to 40V for the original part, providing additional design margin in applications with variable input supplies.

Package Compatibility: Both parts use identical TO-220-5 through-hole packaging, enabling direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the TL2575HV-15IKV be used as a direct replacement for the LM2575TV-015?

A: Yes. Both devices are electrically equivalent across all specified parameters and share identical TO-220-5 through-hole packaging. No circuit modifications are required for substitution.

Q: What is the significance of the higher maximum input voltage (60V vs 40V) on the TL2575HV-15IKV?

A: The TL2575HV-15IKV accommodates higher input voltage supplies without exceeding absolute maximum ratings. This provides additional design flexibility for applications with variable or unregulated input sources. If your application input voltage does not exceed 40V, both parts perform identically.

Q: Why is the LM2575TV-015 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The TL2575HV-15IKV is the active equivalent, ensuring continued availability for new designs and legacy system support.

Q: Does the RoHS3 compliance of the TL2575HV-15IKV affect circuit performance?

A: No. RoHS3 compliance reflects manufacturing process standards and material composition. Electrical performance and functional characteristics remain identical to the original part.

Q: Are there any thermal or reliability differences between these parts?

A: Both devices operate across the same temperature range (-40°C to 125°C junction temperature) and share identical thermal characteristics. No performance degradation or reliability concerns arise from substitution.

Q: Can I use the TL2575HV-15IKV in applications originally designed for the LM2575TV-015?

A: Yes. The TL2575HV-15IKV is fully compatible with existing circuit designs. The enhanced input voltage rating provides additional operational margin without affecting existing system performance.