TLE4476D Equivalent & Substitute Parts

Part Overview

The TLE4476D is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, designed for dual-output power management applications. It provides fixed 3.3V and 5V outputs with output currents of 350mA and 430mA respectively, integrated protection features including over-current, over-temperature, over-voltage, reverse polarity, and short-circuit protection, and operates across the automotive temperature range of -40°C to 170°C with AEC-Q100 qualification.

The TLE4476D is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support long-term product support for applications currently utilizing this component.

Substiute Parts

TLE4476D

Infineon TechnologiesIn Stock: 19414TLE4476D Datasheet

Current PartRFQ

TLE4476DATMA1

Infineon TechnologiesIn Stock: 1556TLE4476DATMA1 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE4476D is determined by strict equivalence across the following critical parameters:

• Dual-output configuration with fixed 3.3V and 5V outputs
• Output current ratings of 350mA and 430mA
• Maximum input voltage of 42V
• Dropout voltage specification of 0.7V @ 330mA
• Quiescent current of 150 µA
• TO-252-5 package (DPAK with 4 leads plus tab)
• Surface mount technology
• Automotive grade with AEC-Q100 qualification
• Identical protection feature set: over-current, over-temperature, over-voltage, reverse polarity, and short-circuit protection
• Operating temperature range of -40°C to 170°C

The TLE4476DATMA1 meets all these criteria and is classified as a parametric equivalent. This part maintains identical electrical specifications and mechanical compatibility while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The TLE4476DATMA1 is the direct parametric equivalent for the obsolete TLE4476D. Both parts are manufactured by Infineon Technologies within the OPTIREG™ series and share identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product status and compliance posture. The TLE4476D is classified as obsolete, while the TLE4476DATMA1 maintains active product status. Additionally, the TLE4476DATMA1 achieves ROHS3 compliance, whereas the TLE4476D is RoHS non-compliant. Both parts maintain identical REACH unaffected status and MSL 1 moisture sensitivity classification.

For new designs or design refreshes, the TLE4476DATMA1 is the appropriate selection due to its active status and improved regulatory compliance. For existing applications currently using the TLE4476D, the TLE4476DATMA1 provides a direct drop-in replacement with no circuit modifications required, as all electrical performance characteristics, protection features, and package specifications remain identical.

Frequently Asked Questions (FAQ)

Q: Can the TLE4476DATMA1 be used as a direct replacement for the TLE4476D?

A: Yes. The TLE4476DATMA1 is a parametric equivalent with identical electrical specifications, output configurations, current ratings, voltage specifications, protection features, operating temperature range, and TO-252-5 package. No circuit modifications are required for substitution.

Q: What is the primary reason to transition from TLE4476D to TLE4476DATMA1?

A: The TLE4476D is classified as obsolete, creating supply chain risk. The TLE4476DATMA1 maintains active product status and ensures long-term availability. Additionally, the TLE4476DATMA1 achieves ROHS3 compliance, supporting evolving regulatory requirements.

Q: Are the packaging and pinout identical between these parts?

A: Yes. Both parts use the TO-252-5 package (DPAK with 4 leads plus tab) in surface mount configuration. Pinout and PCB footprint compatibility are identical.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the TLE4476D and TLE4476DATMA1 are automotive grade components with AEC-Q100 qualification, supporting automotive applications across the -40°C to 170°C operating temperature range.

Q: What protection features are included in both parts?

A: Both parts integrate identical protection: over-current protection, over-temperature protection, over-voltage protection, reverse polarity protection, and short-circuit protection.

Q: Is there any difference in quiescent current or dropout voltage between these parts?

A: No. Both parts maintain identical quiescent current of 150 µA and dropout voltage of 0.7V @ 330mA.