LM2575TV-15G Equivalent & Substitute Parts

Part Overview

The LM2575TV-15G is a buck switching regulator IC manufactured by onsemi, designed for step-down voltage conversion with a fixed 15V output and 1A current capacity. This device operates across a wide input voltage range of 4.75V to 40V and is housed in a TO-220-5 package with formed leads. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

LM2575TV-15G

onsemiIn Stock: 1063LM2575TV-15G Datasheet

Current PartRFQ

LM2575TV-ADJG

onsemiIn Stock: 3331LM2575TV-ADJG Datasheet

DirectRFQ

TL2575HV-15IKV

Texas InstrumentsIn Stock: 1498TL2575HV-15IKV Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LM2575TV-15G are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

• Output Voltage Configuration: Fixed 15V output (matching the main part specification)
• Output Current Rating: 1A minimum capacity
• Input Voltage Range: Minimum 4.75V input support with adequate headroom for 15V output generation
• Switching Frequency: 52kHz operation
• Package / Case: TO-220-5 Formed Leads (mechanical and thermal compatibility)
• Mounting Type: Through Hole
• Topology: Buck (step-down) switching regulator

Parts meeting all these criteria are classified as direct substitutes. Parts with adjustable output configurations are listed separately as they require external resistor networks for 15V output configuration and represent a different design approach.

Parameter Comparison

Engineering Selection Recommendations

LM2575TV-ADJG (onsemi): This part maintains onsemi manufacturer continuity and shares identical electrical specifications with the main part across all critical parameters. The adjustable output configuration requires external resistor divider implementation to achieve 15V output but provides design flexibility for future modifications. This part carries ROHS3 compliance and is currently in active production status, ensuring long-term availability.

TL2575HV-15IKV (Texas Instruments): This part provides fixed 15V output matching the original specification without requiring external configuration components. The input voltage maximum rating extends to 60V compared to the original 40V specification, providing enhanced input voltage margin. This part carries ROHS3 compliance and is in active production status. Cross-manufacturer substitution introduces a different supplier qualification requirement but maintains identical functional performance for the specified 15V output application.

Frequently Asked Questions (FAQ)

Q: Can the LM2575TV-ADJG directly replace the LM2575TV-15G without circuit modifications?

A: The LM2575TV-ADJG requires external resistor network configuration to establish the 15V output voltage. The adjustable output topology necessitates feedback resistor divider implementation. Direct pin-for-pin replacement without output voltage configuration will not produce the required 15V output.

Q: What is the primary advantage of the TL2575HV-15IKV over the LM2575TV-ADJG?

A: The TL2575HV-15IKV provides fixed 15V output without requiring external configuration components, enabling direct schematic substitution. The extended input voltage rating to 60V provides additional design margin compared to the 40V specification of the original part.

Q: Are all substitute parts available in the same TO-220-5 package?

A: Yes. Both substitute parts are packaged in TO-220-5 Formed Leads, maintaining mechanical and thermal compatibility with the original LM2575TV-15G design. Through-hole mounting characteristics remain identical across all three parts.

Q: What compliance certifications apply to the substitute parts?

A: Both substitute parts carry ROHS3 compliance certification and maintain REACH Unaffected status. ECCN and HTSUS classifications remain consistent across all parts in this comparison.

Q: Does the switching frequency remain constant across all substitute options?

A: Yes. All three parts operate at 52kHz switching frequency, maintaining identical EMI and filtering characteristics in the application circuit.