TLE4264GHTSA1 Equivalent & Substitute Parts

Part Overview

The TLE4264GHTSA1 is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, delivering a fixed 5V output at 100mA in a surface-mount SOT223-4 package. This automotive-grade component (AEC-Q100 qualified) provides regulated power with integrated protection features including over-temperature, reverse polarity, and short-circuit protection.

The TLE4264GHTSA1 carries a Last Time Buy product status, indicating discontinued production. Equivalent and substitute parts are necessary to maintain design continuity and ensure long-term supply availability for new production runs and field replacements.

Substiute Parts

TLE4264GHTSA1

Infineon TechnologiesIn Stock: 52397TLE4264GHTSA1 Datasheet

Current PartRFQ

TLE42644GHTMA1

Infineon TechnologiesIn Stock: 4368TLE42644GHTMA1 Datasheet

MFR RecommendedRFQ

TLE42344GHTMA1

Infineon TechnologiesIn Stock: 1635TLE42344GHTMA1 Datasheet

MFR RecommendedRFQ

TLE42644GHTSA3

Infineon TechnologiesIn Stock: 380168TLE42644GHTSA3 Datasheet

MFR RecommendedRFQ

TLE4264GHTMA1

Infineon TechnologiesIn Stock: 4382TLE4264GHTMA1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLE4264GHTSA1 is determined by the following critical parameters:

Core Electrical Compatibility:

• Output voltage: 5V (fixed)
• Output current capability: 100mA minimum
• Input voltage rating: 40V or higher
• Voltage dropout: 0.5V @ 100mA maximum
• Operating temperature range: -40°C to 150°C minimum

Package & Mechanical Compatibility:

• Surface-mount package: TO-261-4 / TO-261AA (PG-SOT223-4)
• Mounting type: Surface Mount

Automotive & Compliance Requirements:

• Automotive grade qualification (AEC-Q100)
• ROHS3 compliance
• REACH unaffected status

Substitute parts are grouped into two categories:

MFR Recommended Substitutes: Parts explicitly recommended by Infineon Technologies as direct replacements, maintaining full electrical and mechanical compatibility with identical or superior performance characteristics.

Parametric Equivalents: Parts meeting all critical electrical and mechanical parameters with identical package specifications, suitable for applications where the exact manufacturer recommendation is unavailable.

Parameter Comparison

Engineering Selection Recommendations

For Active Production and New Designs:

TLE42644GHTSA3 is the primary recommended substitute. This part carries Active product status, ensuring long-term availability and supply continuity. It meets all electrical and mechanical compatibility requirements with the TLE4264GHTSA1, operates within the identical temperature range, and maintains AEC-Q100 automotive qualification. The improved quiescent current (60 µA vs. 400 µA) and enhanced PSRR (68dB vs. 54dB) provide superior power efficiency and noise rejection. MSL rating of 1 (Unlimited) offers superior moisture handling compared to the original part's MSL 3 rating.

Alternative Active Option:

TLE42644GHTMA1 provides equivalent electrical performance to TLE42644GHTSA3 with identical Active product status. This part is suitable where Tape & Reel packaging in standard reels is preferred over alternative reel formats. Input voltage rating is 40V (vs. 45V on the main part), which remains compatible with most automotive applications.

For Parametric Equivalence:

TLE4264GHTMA1 maintains identical electrical specifications to the TLE4264GHTSA1, including quiescent current, PSRR, and protection feature set. This part is classified as a parametric equivalent and carries Last Time Buy status. Selection of this part should be limited to applications where exact parameter matching is critical and supply constraints permit Last Time Buy procurement.

TLE42344GHTMA1 offers parametric equivalence with the addition of Enable control features. This part carries Last Time Buy status and is suitable only where existing designs specifically require Enable functionality and supply availability permits.

Frequently Asked Questions (FAQ)

Q: Can TLE42644GHTSA3 directly replace TLE4264GHTSA1 in existing designs?

A: Yes. TLE42644GHTSA3 meets all critical electrical parameters (5V output, 100mA current, 0.5V dropout, -40°C to 150°C operating range) and maintains identical package specifications (TO-261-4, PG-SOT223-4). Both parts are AEC-Q100 qualified automotive-grade components with ROHS3 compliance. The substitute offers improved quiescent current and PSRR performance.

Q: What is the difference between TLE42644GHTSA3 and TLE42644GHTMA1?

A: Both parts share identical electrical specifications and Active product status. The primary difference is packaging format: TLE42644GHTSA3 is supplied in Tape & Reel format, while TLE42644GHTMA1 is also supplied in Tape & Reel. Both are suitable for automated assembly. Consult supplier documentation for specific reel specifications and minimum order quantities.

Q: Why does TLE42644GHTSA3 have lower quiescent current than the original TLE4264GHTSA1?

A: TLE42644GHTSA3 represents an improved design generation within the OPTIREG™ series, incorporating enhanced power efficiency. The reduced quiescent current (60 µA vs. 400 µA) results from improved internal circuit design and does not affect output voltage regulation or current delivery capability. This improvement is beneficial for battery-powered and low-power applications.

Q: Is the input voltage difference (40V vs. 45V) significant?

A: For most automotive applications, the 40V maximum input rating of TLE42644GHTSA3 and TLE42644GHTMA1 is sufficient. Standard automotive electrical systems operate at 12V or 24V nominal. The 45V rating of the original TLE4264GHTSA1 provides additional margin for transient overvoltage conditions. Applications requiring the full 45V input rating should select TLE42344GHTMA1 or TLE4264GHTMA1.

Q: What does MSL 1 (Unlimited) mean compared to MSL 3 (168 Hours)?

A: MSL (Moisture Sensitivity Level) indicates the maximum time a component can be exposed to ambient conditions before soldering. MSL 1 (Unlimited) allows indefinite storage without moisture bake-out procedures, while MSL 3 (168 Hours) requires moisture bake-out if the component has been exposed to ambient conditions for more than 168 hours. MSL 1 components offer superior handling flexibility in manufacturing environments.

Q: Can I use TLE42344GHTMA1 if my design does not require the Enable feature?

A: Yes. TLE42344GHTMA1 meets all core electrical and mechanical compatibility requirements. The Enable control feature will remain unused but does not affect basic voltage regulation functionality. However, TLE42644GHTSA3 is preferred due to its Active product status and superior power efficiency characteristics.

Q: What is the significance of "Last Time Buy" product status?

A: Last Time Buy indicates that the manufacturer has discontinued production and will accept orders only until a specified cutoff date. Parts with this status should not be selected for new production designs. For the TLE4264GHTSA1, TLE42344GHTMA1, and TLE4264GHTMA1, Active-status alternatives (TLE42644GHTSA3 or TLE42644GHTMA1) are recommended for long-term supply security.

Q: Are all substitute parts AEC-Q100 qualified?

A: Yes. All listed substitute parts carry AEC-Q100 automotive qualification, meeting Infineon's automotive-grade reliability and quality standards. All parts are ROHS3 compliant and REACH unaffected, ensuring regulatory compliance across automotive supply chains.