TLE4264GHTMA1 Equivalent & Substitute Parts

Part Overview

The TLE4264GHTMA1 is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, designed to deliver a fixed 5V output at 100mA with a maximum dropout voltage of 0.5V. This automotive-grade regulator (AEC-Q100 qualified) integrates protection features including over-temperature, reverse polarity, and short-circuit protection, operating across the temperature range of -40°C to 150°C.

The TLE4264GHTMA1 carries a Last Time Buy product status, indicating that this part number is being phased out. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications currently utilizing this regulator.

Substiute Parts

TLE4264GHTMA1

Infineon TechnologiesIn Stock: 4382TLE4264GHTMA1 Datasheet

Current PartRFQ

TLE42644GHTMA1

Infineon TechnologiesIn Stock: 4368TLE42644GHTMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE4264GHTMA1 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

• Output voltage: 5V fixed
• Output current capability: 100mA
• Package type: PG-SOT223-4 (TO-261-4, TO-261AA)
• Mounting type: Surface Mount
• Operating temperature range: -40°C to 150°C
• Automotive grade qualification: AEC-Q100
• RoHS3 compliance
• MSL rating: 1

Allowable Variation Parameters:

• Input voltage maximum (45V primary specification; 40V acceptable for substitute)
• Dropout voltage (0.5V @ 100mA maintained)
• Quiescent current (lower values acceptable)
• Supply current maximum (lower values acceptable)
• PSRR specification (higher values acceptable)
• Protection features (additional features acceptable)
• Product status (Active status preferred over Last Time Buy)

The TLE42644GHTMA1 meets all mandatory matching criteria and represents a direct functional equivalent with enhanced specifications in quiescent current, supply current, and PSRR performance.

Parameter Comparison

Engineering Selection Recommendations

The TLE42644GHTMA1 is the direct substitute for the TLE4264GHTMA1. Both parts are manufactured by Infineon Technologies and maintain identical output specifications (5V, 100mA) with matching package geometry (PG-SOT223-4) and automotive qualification (AEC-Q100).

Selection Basis:

The TLE42644GHTMA1 carries Active product status, whereas the TLE4264GHTMA1 is designated Last Time Buy. This status transition makes the TLE42644GHTMA1 the appropriate choice for new designs and ongoing production requirements.

The substitute part demonstrates improved performance characteristics: quiescent current is reduced from 400 µA to 70 µA, supply current maximum decreases from 15 mA to 4 mA, and PSRR improves from 54dB to 68dB at 100Hz. These enhancements provide superior power efficiency and noise rejection without compromising functional equivalence.

The maximum input voltage specification differs (40V versus 45V). Applications requiring input voltages between 40V and 45V must retain the TLE4264GHTMA1 or identify alternative solutions outside this substitute relationship.

Both parts maintain identical dropout voltage performance (0.5V @ 100mA), operating temperature range (-40°C to 150°C), and compliance certifications (ROHS3, AEC-Q100, MSL 1).

Frequently Asked Questions (FAQ)

Q: Can the TLE42644GHTMA1 replace the TLE4264GHTMA1 in existing designs?

A: Yes, for applications where the input voltage does not exceed 40V. The TLE42644GHTMA1 maintains identical output voltage (5V), output current (100mA), package type (PG-SOT223-4), and operating temperature range. If your design requires input voltages between 40V and 45V, the TLE4264GHTMA1 must be retained.

Q: What is the significance of the Last Time Buy status on the TLE4264GHTMA1?

A: Last Time Buy indicates that Infineon Technologies is discontinuing this part number. The TLE42644GHTMA1 is the active replacement. Designs currently using the TLE4264GHTMA1 should transition to the TLE42644GHTMA1 to ensure long-term supply availability.

Q: Are the package dimensions identical between these two parts?

A: Yes. Both parts use the PG-SOT223-4 package (TO-261-4, TO-261AA designation), ensuring identical PCB footprint and mounting requirements. No layout modifications are necessary for substitution.

Q: What are the key performance improvements in the TLE42644GHTMA1?

A: The substitute part reduces quiescent current from 400 µA to 70 µA and supply current maximum from 15 mA to 4 mA, resulting in lower power consumption. PSRR improves from 54dB to 68dB at 100Hz, providing enhanced noise rejection. Dropout voltage remains constant at 0.5V @ 100mA.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the TLE4264GHTMA1 and TLE42644GHTMA1 are AEC-Q100 qualified automotive-grade components with identical operating temperature ranges (-40°C to 150°C). Both maintain ROHS3 compliance and MSL 1 rating.

Q: What protection features does each regulator include?

A: The TLE4264GHTMA1 includes over-temperature, reverse polarity, and short-circuit protection. The TLE42644GHTMA1 adds over-current protection to this feature set, providing additional safeguarding against fault conditions.

Q: Is there any difference in moisture sensitivity between these parts?

A: No. Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity limitations for storage or handling.