LM2575-5.0WU-TR Equivalent & Substitute Parts

Part Overview

The LM2575-5.0WU-TR is a buck switching regulator IC manufactured by Microchip Technology, delivering a fixed 5V output at 1A. It operates across an input voltage range of 4V to 40V with a switching frequency of 52kHz and is housed in a TO-263-6 (D2PAK) surface mount package. The device is currently in active production status with 1484 units in stock.

Substitute parts are necessary when the original part becomes unavailable, when higher current capacity is required for design margin, or when alternative packaging options are preferred while maintaining electrical compatibility within the specified parameter ranges.

Substiute Parts

LM2575-5.0WU-TR

Microchip TechnologyIn Stock: 1508LM2575-5.0WU-TR Datasheet

Current PartRFQ

LM2575-5.0WU-TR

Microchip TechnologyIn Stock: 1508LM2575-5.0WU-TR Datasheet

Parametric EquivalentRFQ

AP1506-50K5G-13

Diodes IncorporatedIn Stock: 2404AP1506-50K5G-13 Datasheet

MFR RecommendedRFQ

LM2592HVS-5.0/NOPB

Texas InstrumentsIn Stock: 1000183LM2592HVS-5.0/NOPB Datasheet

MFR RecommendedRFQ

LM2592HVSX-5.0/NOPB

Texas InstrumentsIn Stock: 60474LM2592HVSX-5.0/NOPB Datasheet

MFR RecommendedRFQ

LM2596S-5.0/NOPB

Texas InstrumentsIn Stock: 9015LM2596S-5.0/NOPB Datasheet

MFR RecommendedRFQ

LM2596SX-5.0/NOPB

Texas InstrumentsIn Stock: 43147LM2596SX-5.0/NOPB Datasheet

MFR RecommendedRFQ

NCV2575D2T-5R4G

onsemiIn Stock: 1288NCV2575D2T-5R4G Datasheet

MFR RecommendedRFQ

TL2575-05IKTTR

Texas InstrumentsIn Stock: 21640TL2575-05IKTTR Datasheet

MFR RecommendedRFQ

TL2575-05IKTTRG3

Texas InstrumentsIn Stock: 5442TL2575-05IKTTRG3 Datasheet

MFR RecommendedRFQ

TL2575HV-05IKTTR

Texas InstrumentsIn Stock: 1320TL2575HV-05IKTTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Electrical Compatibility Requirements:

• Output voltage: 5V fixed
• Output topology: Positive buck regulator
• Package type: TO-263-6 (D2PAK, 5 Leads + Tab)
• Mounting: Surface mount

Acceptable Parameter Variations:

• Output current: Equal to or greater than 1A (higher current capacity provides design margin)
• Input voltage range: Must encompass the minimum 4V and maximum 40V requirements
• Switching frequency: 52kHz or higher (frequency variation does not affect functional compatibility)
• Operating temperature: Must support -40°C to 125°C range

Compliance Requirements:

• RoHS3 compliance required
• MSL rating of 3 or better acceptable

Substitute parts are grouped by output current capacity: 1A direct equivalents, 2A intermediate capacity, and 3A higher capacity options.

Parameter Comparison

Engineering Selection Recommendations

Direct 1A Equivalents (Recommended for Pin-Compatible Replacement):

TL2575-05IKTTRG3 and TL2575-05IKTTR are active Texas Instruments products with identical 1A output current and 52kHz switching frequency. Both maintain the -40°C to 125°C operating range and TO-263-6 package. TL2575-05IKTTRG3 is available in Tape & Reel packaging matching the original part. TL2575HV-05IKTTR extends input voltage tolerance to 60V while maintaining all other specifications, providing enhanced headroom for high-input applications.

NCV2575D2T-5R4G from onsemi is electrically equivalent but carries obsolete product status, limiting its suitability for new designs despite current inventory availability.

2A Intermediate Capacity (Design Margin Enhancement):

LM2592HVS-5.0/NOPB and LM2592HVSX-5.0/NOPB both deliver 2A output current with extended 60V input tolerance and higher 150kHz switching frequency. Both maintain -40°C to 125°C operating temperature and TO-263-6 packaging. These parts provide 2x current capacity for thermal margin while remaining pin-compatible. LM2592HVSX-5.0/NOPB is available in Cut Tape & Digi-Reel packaging with 60,400 units in stock.

3A Higher Capacity (Maximum Design Margin):

LM2596S-5.0/NOPB and LM2596SX-5.0/NOPB deliver 3A output current with 150kHz switching frequency and -40°C to 125°C operating range. Both support 4.5V to 40V input voltage. LM2596SX-5.0/NOPB is available in Cut Tape & Digi-Reel packaging with 43,100 units in stock and active product status.

AP1506-50K5G-13 from Diodes Incorporated provides 3A capacity but carries Last Time Buy status and operates only to 85°C maximum junction temperature, making it unsuitable for applications requiring full -40°C to 125°C range.

Compliance Status:

All recommended active substitutes maintain ROHS3 compliance and MSL 3 rating. Texas Instruments LM2592HVSX-5.0/NOPB and LM2596SX-5.0/NOPB carry REACH Unaffected status, while LM2592HVS-5.0/NOPB and LM2596S-5.0/NOPB are REACH Affected.

Frequently Asked Questions (FAQ)

Q: Can I use a 2A or 3A substitute in place of the 1A LM2575-5.0WU-TR?

A: Yes. Higher output current capacity is compatible with 1A applications. The regulator will deliver only the current demanded by the load. Higher current parts provide thermal margin and design flexibility. All recommended substitutes maintain identical 5V output voltage, TO-263-6 package, and surface mount configuration.

Q: What is the difference between TL2575-05IKTTR and TL2575-05IKTTRG3?

A: Both are Texas Instruments TL2575 1A buck regulators with identical electrical specifications. The primary difference is packaging: TL2575-05IKTTR is supplied in Cut Tape & Digi-Reel format, while TL2575-05IKTTRG3 is supplied in Tape & Reel format. Selection depends on your procurement and assembly process requirements.

Q: Why does TL2575HV-05IKTTR have a higher input voltage maximum (60V vs 40V)?

A: The HV suffix indicates high-voltage rated design. This part maintains all other specifications identical to standard TL2575 variants but tolerates input voltages up to 60V. It is a direct substitute for applications requiring extended input voltage range while maintaining 1A output current and 52kHz switching frequency.

Q: Is NCV2575D2T-5R4G still usable despite obsolete status?

A: NCV2575D2T-5R4G is electrically equivalent with 1A output and 52kHz operation. However, obsolete product status indicates onsemi has discontinued production. Current inventory (1207 units) is available, but long-term supply cannot be guaranteed. For new designs, active alternatives such as TL2575-05IKTTRG3 are recommended.

Q: What is the advantage of LM2592 or LM2596 parts over direct 1A equivalents?

A: LM2592 (2A) and LM2596 (3A) parts provide higher output current capacity, enabling thermal margin in the regulator and associated circuitry. They operate at 150kHz switching frequency versus 52kHz, potentially reducing output filter component size. Both support extended 60V input voltage (LM2592) or maintain 40V maximum (LM2596). Pin-compatible TO-263-6 packaging allows direct substitution.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification. Moisture sensitivity level (MSL) is rated 3 for all active parts, requiring 168-hour dry storage conditions before reflow soldering.

Q: Can I mix packaging types (Tape & Reel vs Cut Tape) in production?

A: Packaging type affects procurement and assembly logistics but not electrical function. TL2575-05IKTTRG3 (Tape & Reel) and TL2575-05IKTTR (Cut Tape & Digi-Reel) are electrically identical. Selection depends on your assembly equipment and supply chain requirements. Verify your pick-and-place system compatibility with the selected packaging format.