LM2575HVT-5.0/LB03 Equivalent & Substitute Parts

Part Overview

The LM2575HVT-5.0/LB03 is a buck switching regulator IC from Texas Instruments' SIMPLE SWITCHER® series, delivering fixed 5V output at 1A. This through-hole TO-220-5 package component operates across a wide input voltage range of 4V to 60V with a switching frequency of 52kHz. The part is currently in Last Time Buy status with 799 units in stock. Alternative equivalent parts are necessary due to product lifecycle transitions and varying inventory availability across different packaging and manufacturer variants.

Substiute Parts

LM2575HVT-5.0/LB03

Texas InstrumentsIn Stock: 874LM2575HVT-5.0/LB03 Datasheet

Current PartRFQ

LM2575HVT-5.0/NOPB

Texas InstrumentsIn Stock: 4684LM2575HVT-5.0/NOPB Datasheet

DirectRFQ

LM2575HVT-5.0/LF03

Texas InstrumentsIn Stock: 1185LM2575HVT-5.0/LF03 Datasheet

MFR RecommendedRFQ

LM2576TV-5G

onsemiIn Stock: 1984LM2576TV-5G Datasheet

MFR RecommendedRFQ

TL2575-05IKV

Texas InstrumentsIn Stock: 1666TL2575-05IKV Datasheet

MFR RecommendedRFQ

TL2575HV-05IKV

Texas InstrumentsIn Stock: 1446TL2575HV-05IKV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM2575HVT-5.0/LB03 is determined by the following critical parameters: fixed 5V output voltage, 1A output current capability, TO-220-5 package format, 52kHz switching frequency, and through-hole mounting type. All identified substitutes maintain these core electrical and mechanical specifications. Substitutes are grouped into two categories: direct Texas Instruments variants with identical electrical performance and alternative manufacturer options with compatible specifications.

Direct Texas Instruments Variants (LM2575HVT-5.0/NOPB, LM2575HVT-5.0/LF03, TL2575-05IKV, TL2575HV-05IKV) preserve the LM2575/TL2575 base product architecture with matching output voltage, current rating, and switching frequency. These parts differ primarily in packaging designation and input voltage range specifications.

Alternative Manufacturer Option (LM2576TV-5G from onsemi) provides higher current capability at 3A while maintaining the 5V fixed output, 52kHz switching frequency, and TO-220-5 package. This part accommodates applications requiring increased current headroom within the same form factor.

Parameter Comparison

Engineering Selection Recommendations

LM2575HVT-5.0/NOPB is the primary direct substitute, offering identical electrical specifications with Active product status and higher inventory availability (4625 units). This part maintains full compatibility with the LM2575HVT-5.0/LB03 across all critical parameters and is recommended for new designs transitioning from Last Time Buy status.

LM2575HVT-5.0/LF03 provides an alternative Texas Instruments variant with Active status and formed leads package matching the original part. This option is suitable for applications requiring the specific formed leads configuration with 1088 units available.

TL2575HV-05IKV extends the input voltage range to 60V maximum while maintaining 1A output current and Active product status. This part accommodates applications requiring the full high-voltage input specification of the original LM2575HVT-5.0/LB03 with 1397 units in stock.

TL2575-05IKV operates within a reduced input voltage range (4.75V to 40V) but maintains 1A output current and Active status. This option is applicable only to applications operating within the specified input voltage window.

LM2576TV-5G from onsemi provides 3A output current capability within the same TO-220-5 package and 52kHz switching frequency. This part is suitable for applications requiring increased current capacity, though the input voltage range is limited to 7V to 40V. Selection of this part requires verification that the reduced minimum input voltage (7V vs. 4V) and maximum input voltage (40V vs. 60V) are compatible with the application.

Frequently Asked Questions (FAQ)

Q: Can LM2575HVT-5.0/NOPB directly replace LM2575HVT-5.0/LB03?

A: Yes. Both parts share identical electrical specifications: 5V fixed output, 1A current rating, 4V to 60V input range, 52kHz switching frequency, and TO-220-5 package. The primary difference is product status (Active vs. Last Time Buy) and packaging designation suffix.

Q: What is the difference between LM2575HVT-5.0/LB03 and LM2575HVT-5.0/LF03?

A: Both parts are Texas Instruments LM2575HVT-5.0 variants with identical electrical performance. The suffix designates packaging and lead formation specifications. LF03 indicates formed leads in tube packaging, matching the original part's configuration.

Q: When should LM2576TV-5G be selected instead of LM2575HVT-5.0/LB03?

A: LM2576TV-5G is selected when the application requires 3A output current capacity. However, this part has a reduced input voltage range (7V to 40V maximum) compared to the original part (4V to 60V). Verify that your application's input voltage specifications fall within 7V to 40V before selecting this substitute.

Q: Are TL2575-05IKV and TL2575HV-05IKV interchangeable with LM2575HVT-5.0/LB03?

A: Both TL2575 variants maintain 5V output, 1A current, 52kHz switching frequency, and TO-220-5 package. TL2575-05IKV operates within 4.75V to 40V input range, while TL2575HV-05IKV extends to 60V maximum input. TL2575HV-05IKV is fully compatible with the original part's 4V to 60V specification. TL2575-05IKV is compatible only for applications operating within 4.75V to 40V input range.

Q: Do all substitute parts maintain ROHS3 compliance?

A: Yes. All identified substitutes are ROHS3 compliant, matching the original LM2575HVT-5.0/LB03 environmental certification status.

Q: What is the inventory status of substitute parts?

A: LM2575HVT-5.0/NOPB has the highest availability at 4625 units. LM2576TV-5G provides 1900 units, TL2575HV-05IKV offers 1397 units, TL2575-05IKV provides 1565 units, and LM2575HVT-5.0/LF03 has 1088 units in stock.