TLE42712AKSA1 Equivalent & Substitute Parts

Part Overview

The TLE42712AKSA1 is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, designed for automotive applications. It delivers a fixed 5V output at 550mA with integrated protection features including over-current, over-temperature, over-voltage, reverse polarity, and short-circuit protection. The device includes reset and watchdog control features, making it suitable for safety-critical automotive systems.

The TLE42712AKSA1 is classified as obsolete. Finding equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support long-term production requirements for systems currently using this regulator.

Substiute Parts

TLE42712AKSA1

Infineon TechnologiesIn Stock: 645TLE42712AKSA1 Datasheet

Current PartRFQ

TLE42712GATMA1

Infineon TechnologiesIn Stock: 5619TLE42712GATMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE42712AKSA1 is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Fixed output voltage of 5V
• Output current rating of 550mA
• Maximum input voltage of 40V
• Voltage dropout specification of 0.7V @ 550mA
• Quiescent current of 6 µA
• PSRR of 54dB (100Hz)
• Operating temperature range of -40°C ~ 150°C (TJ)
• Identical protection features: Over Current, Over Temperature, Over Voltage, Reverse Polarity, Short Circuit
• Identical control features: Reset, Watchdog
• Automotive grade with AEC-Q100 qualification

Mechanical Considerations:

• Mounting type and package configuration may differ while maintaining electrical equivalence
• The substitute part must belong to the same OPTIREG™ series from Infineon Technologies

The TLE42712GATMA1 meets all electrical equivalence criteria and is classified as an active product, providing supply chain continuity for the obsolete TLE42712AKSA1.

Parameter Comparison

Engineering Selection Recommendations

The TLE42712GATMA1 is the direct electrical equivalent to the obsolete TLE42712AKSA1. Both devices maintain identical electrical performance specifications and automotive-grade certifications (AEC-Q100).

Key Considerations:

The primary difference between these parts is the package configuration: the TLE42712AKSA1 uses through-hole TO-220-7 mounting, while the TLE42712GATMA1 uses surface-mount TO-263 packaging. PCB layout modifications are required to accommodate this package change.

The TLE42712GATMA1 carries ROHS3 compliance, whereas the TLE42712AKSA1 is RoHS non-compliant. This compliance improvement may be advantageous for new designs or updated production runs.

The TLE42712GATMA1 has significantly higher inventory availability (5600 Pcs versus 613 Pcs), ensuring reliable supply chain access for ongoing production requirements.

Frequently Asked Questions (FAQ)

Q: Can the TLE42712GATMA1 directly replace the TLE42712AKSA1 without circuit modifications?

A: Electrical substitution is direct. However, the package change from TO-220-7 (through-hole) to TO-263 (surface-mount) requires PCB layout redesign. Pin functionality and electrical performance remain identical.

Q: What are the key electrical parameters that define substitution compatibility?

A: Substitution is based on fixed output voltage (5V), output current (550mA), maximum input voltage (40V), dropout voltage (0.7V @ 550mA), quiescent current (6 µA), PSRR (54dB at 100Hz), operating temperature range (-40°C ~ 150°C), and identical protection and control features.

Q: Does the RoHS compliance difference affect substitution?

A: The TLE42712GATMA1's ROHS3 compliance is an improvement over the non-compliant TLE42712AKSA1. This does not prevent substitution but may require documentation updates for regulatory compliance tracking.

Q: Are there thermal or reliability differences between the TO-220-7 and TO-263 packages?

A: Both packages are rated for the same operating temperature range (-40°C ~ 150°C). Package selection should be based on PCB thermal design and available board space. The TO-263 package with integrated tab may offer improved thermal performance in certain layouts.

Q: Is the TLE42712GATMA1 suitable for automotive applications?

A: Yes. The TLE42712GATMA1 maintains automotive-grade classification and AEC-Q100 qualification, identical to the original TLE42712AKSA1.