TLE4264-2G Equivalent & Substitute Parts

Part Overview

The TLE4264-2G is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, delivering a fixed 5V output at 150mA in a surface-mount SOT223-4 package. Designed for automotive applications with AEC-Q100 qualification, this part integrates over-current, over-temperature, and short-circuit protection with a maximum input voltage of 45V and 0.5V dropout at 100mA.

The TLE4264-2G is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently using this regulator.

Substiute Parts

TLE4264-2G

Infineon TechnologiesIn Stock: 35335TLE4264-2G Datasheet

Current PartRFQ

TLE42642GHTMA1

Infineon TechnologiesIn Stock: 9118TLE42642GHTMA1 Datasheet

Parametric EquivalentRFQ

TLE42642GHTSA2

Infineon TechnologiesIn Stock: 2302TLE42642GHTSA2 Datasheet

Parametric EquivalentRFQ

L5150BNTR

STMicroelectronicsIn Stock: 35137L5150BNTR Datasheet

MFR RecommendedRFQ

NCV2931AST-5T3G

onsemiIn Stock: 27810NCV2931AST-5T3G Datasheet

MFR RecommendedRFQ

NCV4264-2ST50T3G

onsemiIn Stock: 245375NCV4264-2ST50T3G Datasheet

MFR RecommendedRFQ

NCV8664CST50T3G

onsemiIn Stock: 18212NCV8664CST50T3G Datasheet

MFR RecommendedRFQ

TPS7B6950QDCYRQ1

Texas InstrumentsIn Stock: 10195TPS7B6950QDCYRQ1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLE4264-2G is determined by the following critical parameters:

• Output voltage fixed at 5V
• Output current capability of 150mA or greater
• Input voltage maximum of 45V or greater
• SOT223-4 package compatibility (TO-261-4, TO-261AA)
• Automotive grade with AEC-Q100 qualification
• Operating temperature range of -40°C to 150°C or equivalent
• Surface-mount mounting type

Substitute parts are grouped into two categories: parametric equivalents (identical electrical specifications and product status active) and manufacturer-recommended alternatives (functionally compatible with minor parameter variations acceptable for the application).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Parametric Equivalents):

TLE42642GHTMA1 and TLE42642GHTSA2 are direct parametric equivalents from Infineon, maintaining identical electrical specifications to the TLE4264-2G while offering active product status and ROHS3 compliance. These parts are the preferred choice for direct replacement in existing designs. Selection between these two depends on packaging requirements: TLE42642GHTMA1 is supplied in Tape & Reel format, while TLE42642GHTSA2 is available in Cut Tape & Digi-Reel format.

Cross-Manufacturer Alternatives (Active Status):

NCV8664CST50T3G (onsemi) provides full 150mA output current capability with 45V maximum input voltage and active product status. The 0.6V dropout at 150mA represents a minor increase from the original 0.5V specification but remains within acceptable automotive operating margins.

L5150BNTR (STMicroelectronics) and TPS7B6950QDCYRQ1 (Texas Instruments) both deliver 150mA output current with active product status and AEC-Q100 qualification. L5150BNTR operates at 40V maximum input voltage. TPS7B6950QDCYRQ1 includes additional under-voltage lockout (UVLO) protection and operates at 40V maximum input voltage with 0.8V dropout at 100mA.

Limited Substitutes (Reduced Specifications):

NCV4264-2ST50T3G (onsemi) and NCV2931AST-5T3G (onsemi) provide reduced output current (100mA) compared to the original 150mA specification. NCV4264-2ST50T3G maintains 45V input voltage and -40°C to 150°C operating range but carries "Not For New Designs" status. NCV2931AST-5T3G is limited to 26V input voltage and -40°C to 125°C operating range. These parts are suitable only for applications where 100mA output current is sufficient.

Frequently Asked Questions (FAQ)

Q: Can TLE42642GHTMA1 or TLE42642GHTSA2 be used as direct replacements for TLE4264-2G?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, same package type (SOT223-4), and automotive AEC-Q100 qualification. The primary differences are active product status and ROHS3 compliance. Selection depends on packaging format: Tape & Reel (TLE42642GHTMA1) or Cut Tape & Digi-Reel (TLE42642GHTSA2).

Q: What are the key differences between NCV8664CST50T3G and the original TLE4264-2G?

A: NCV8664CST50T3G maintains 150mA output current, 45V input voltage, and -40°C to 150°C operating range. The dropout voltage increases from 0.5V to 0.6V at 150mA. It includes reverse-polarity protection in addition to over-current, over-temperature, and short-circuit protection. Product status is active with ROHS3 compliance.

Q: Can NCV2931AST-5T3G or NCV4264-2ST50T3G be used as substitutes?

A: These parts are limited substitutes suitable only for applications requiring 100mA or less output current. NCV2931AST-5T3G is further restricted to 26V maximum input voltage and -40°C to 125°C operating range. NCV4264-2ST50T3G carries "Not For New Designs" status. Use these only when output current requirements are confirmed below 100mA.

Q: Are all substitute parts automotive-grade with AEC-Q100 qualification?

A: Yes. All listed substitute parts carry automotive grade classification and AEC-Q100 qualification, maintaining the same quality and reliability standards as the original TLE4264-2G.

Q: What packaging options are available for substitutes?

A: All substitute parts use SOT223-4 package (TO-261-4, TO-261AA) compatible with the original design. Packaging formats vary: Tape & Reel, Cut Tape, or Cut Tape & Digi-Reel. Verify packaging availability with your supplier based on production volume requirements.

Q: Do all substitutes have the same moisture sensitivity level?

A: No. TLE42642GHTMA1 and TLE42642GHTSA2 maintain MSL 1 (Unlimited). Cross-manufacturer alternatives have MSL 3 (168 Hours), requiring controlled storage and handling during assembly. Plan moisture management accordingly for high-volume production.