TLE4284DV15ATMA1 Equivalent & Substitute Parts

Part Overview

The TLE4284DV15ATMA1 is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, designed to deliver a fixed 1.5V output at 1A. This device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The part operates across automotive-grade specifications with AEC-Q100 qualification, suitable for applications requiring regulated low-voltage power delivery in temperature-controlled environments.

Substiute Parts

TLE4284DV15ATMA1

Infineon TechnologiesIn Stock: 3463TLE4284DV15ATMA1 Datasheet

Current PartRFQ

L7805CDT-TR

STMicroelectronicsIn Stock: 139575L7805CDT-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE4284DV15ATMA1 is constrained by the following critical parameters:

Output Voltage Requirement: The fixed output voltage of 1.5V is application-specific and non-negotiable. Substitute parts must deliver identical output voltage to maintain circuit functionality.

Package Compatibility: The TO-252-3 DPAK package with 2 leads plus tab (SC-63) is a mechanical and electrical interface requirement. Pin-to-pin compatibility is mandatory for direct board-level replacement.

Output Current Rating: The 1A output current specification establishes the minimum current delivery capability required by the load circuit.

Input Voltage Range: Maximum input voltage of 40V defines the regulator's absolute maximum rating and operating envelope.

Thermal and Environmental Specifications: Operating temperature range, dropout voltage, and quiescent current characteristics influence performance in specific application contexts.

The substitute part L7805CDT-TR from STMicroelectronics shares identical package geometry and mounting type but differs in output voltage specification (5V vs. 1.5V), making it unsuitable as a direct functional equivalent for this application.

Parameter Comparison

Engineering Selection Recommendations

The L7805CDT-TR is not a functional equivalent for the TLE4284DV15ATMA1 due to fundamental output voltage incompatibility (5V vs. 1.5V). While both devices share identical package geometry and mounting type, the voltage specification difference precludes direct substitution in applications designed for 1.5V regulation.

For applications requiring automotive-grade specifications with AEC-Q100 qualification, the original TLE4284DV15ATMA1 remains the specified component. The obsolete status of this part necessitates design review and potential circuit redesign if inventory depletion occurs.

Commercial-grade alternatives such as the L7805CDT-TR lack automotive qualification and operate within a narrower temperature range (0°C ~ 125°C vs. -40°C ~ 150°C), making them unsuitable for automotive applications requiring AEC-Q100 compliance.

Frequently Asked Questions (FAQ)

Q: Can the L7805CDT-TR replace the TLE4284DV15ATMA1 in my circuit?

A: No. The L7805CDT-TR outputs 5V while the TLE4284DV15ATMA1 outputs 1.5V. Output voltage is a non-negotiable parameter for voltage regulator substitution. Using an incompatible voltage regulator will damage downstream components designed for 1.5V operation.

Q: Are the packages physically identical?

A: Yes. Both devices use the TO-252-3 DPAK package with 2 leads plus tab (SC-63). Physical compatibility does not ensure functional compatibility when electrical specifications differ.

Q: What is the significance of the automotive grade and AEC-Q100 qualification?

A: Automotive-grade components meet stringent reliability, temperature stability, and quality standards required for automotive applications. The L7805CDT-TR is commercial-grade and lacks AEC-Q100 qualification, making it unsuitable for automotive systems requiring these certifications.

Q: Why is the TLE4284DV15ATMA1 listed as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. This necessitates identification of equivalent alternatives or design modification to use currently available components.

Q: What parameters must match for a valid substitute?

A: Output voltage, output current rating, package type, and applicable certifications (automotive vs. commercial grade) are the primary parameters determining substitution validity. Input voltage range, dropout voltage, and operating temperature range must also be evaluated for specific application requirements.