LM2575D2T-15R4G Equivalent & Substitute Parts

Part Overview

The LM2575D2T-15R4G is an active 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 a wide input voltage range of 4.75V to 40V and is housed in a TO-263-6 D2PAK package suitable for surface mount applications. The part is currently in active production status with 12,400 units in stock. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, design flexibility, or supply chain considerations.

Substiute Parts

LM2575D2T-15R4G

onsemiIn Stock: 12493LM2575D2T-15R4G Datasheet

Current PartRFQ

TL2575HV-15IKTTR

Texas InstrumentsIn Stock: 1402TL2575HV-15IKTTR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2575D2T-15R4G is determined by the following critical parameters:

• Fixed output voltage of 15V
• Maximum output current of 1A
• Input voltage range compatibility (minimum 4.75V, maximum voltage tolerance)
• Switching frequency of 52kHz
• Identical package type: TO-263-6 D2PAK (5 Leads + Tab)
• Surface mount configuration
• Operating temperature range of -40°C to 125°C
• Positive output configuration with single output
• Buck topology with fixed output type

The TL2575HV-15IKTTR from Texas Instruments meets all critical substitution criteria. Both devices share identical functional specifications, package geometry, and thermal operating range, enabling direct functional replacement in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the LM2575D2T-15R4G and TL2575HV-15IKTTR are active production devices with full ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The primary distinction is the maximum input voltage specification: the onsemi device supports up to 40V input, while the Texas Instruments substitute extends this to 60V. For applications operating within the 4.75V to 40V input range, both devices are functionally equivalent. The TL2575HV-15IKTTR provides additional input voltage headroom for designs requiring operation up to 60V. Both devices maintain identical output specifications, package footprint, and thermal characteristics, ensuring direct PCB compatibility and functional interchangeability within specified input voltage parameters.

Frequently Asked Questions (FAQ)

Q: Can the TL2575HV-15IKTTR directly replace the LM2575D2T-15R4G on an existing PCB?

A: Yes. Both devices use identical TO-263-6 D2PAK packaging with matching pin configurations, lead spacing, and thermal tab geometry. No PCB modifications are required for physical substitution.

Q: What is the key difference between these two parts?

A: The maximum input voltage rating differs. The LM2575D2T-15R4G accepts input up to 40V, while the TL2575HV-15IKTTR accepts up to 60V. All other electrical and mechanical specifications are identical.

Q: Are both parts suitable for the same temperature range applications?

A: Yes. Both devices operate across -40°C to 125°C junction temperature, supporting identical thermal operating ranges.

Q: Do both parts meet current environmental compliance standards?

A: Yes. Both the LM2575D2T-15R4G and TL2575HV-15IKTTR are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: What switching frequency do these regulators operate at?

A: Both devices switch at 52kHz, ensuring identical EMI characteristics and filtering requirements in circuit design.

Q: Can these parts be used in applications requiring input voltages above 40V?

A: The LM2575D2T-15R4G is rated only to 40V input maximum. For applications requiring higher input voltages, the TL2575HV-15IKTTR with its 60V maximum rating is the appropriate selection.

Q: Are there any differences in moisture sensitivity between these parts?

A: Yes. The LM2575D2T-15R4G has MSL 1 (Unlimited), while the TL2575HV-15IKTTR has MSL 3 (168 Hours). This affects storage and handling requirements, with the Texas Instruments device requiring more controlled moisture exposure during storage and prior to reflow soldering.