TLE4276DV50ATMA2 Equivalent & Substitute Parts

Part Overview

The TLE4276DV50ATMA2 is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, designed for automotive applications. It delivers a fixed 5V output at 400mA with integrated protection features including over-current, over-temperature, reverse polarity, and short-circuit protection. The device operates across an input voltage range up to 40V with a maximum dropout voltage of 0.5V at 250mA.

The TLE4276DV50ATMA2 carries Last Time Buy status, indicating end-of-life production. Identifying equivalent substitute parts ensures design continuity and supply chain reliability for applications requiring this voltage regulation topology.

Substiute Parts

TLE4276DV50ATMA2

Infineon TechnologiesIn Stock: 3603TLE4276DV50ATMA2 Datasheet

Current PartRFQ

TLE42764DV50ATMA1

Infineon TechnologiesIn Stock: 52815TLE42764DV50ATMA1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLE4276DV50ATMA2 is determined by the following critical parameters:

• Fixed output voltage of 5V
• Output current capability of 400mA
• Maximum input voltage rating of 40V
• Dropout voltage specification of 0.5V @ 250mA
• TO-252-5 package compatibility
• Automotive grade qualification (AEC-Q100)
• Operating temperature range of -40°C ~ 150°C

The TLE42764DV50ATMA1 qualifies as a direct substitute, maintaining identical electrical specifications across all critical parameters while offering improved product status and expanded packaging options.

Parameter Comparison

Engineering Selection Recommendations

The TLE42764DV50ATMA1 is the qualified substitute for the TLE4276DV50ATMA2. Both devices maintain identical electrical performance across all critical parameters: 5V fixed output, 400mA current capability, 40V maximum input voltage, and 0.5V dropout voltage specification.

The primary distinction is product lifecycle status. The TLE4276DV50ATMA2 is designated Last Time Buy, while the TLE42764DV50ATMA1 maintains Active status with significantly higher inventory availability (52,788 units versus 3,511 units). Both devices carry identical automotive qualification (AEC-Q100), RoHS3 compliance, and MSL-1 moisture sensitivity ratings.

The TLE42764DV50ATMA1 offers expanded packaging options (Cut Tape and Digi-Reel®) compared to the Cut Tape-only availability of the TLE4276DV50ATMA2. The quiescent current differential (220 µA versus 200 µA) is negligible for most automotive power management applications.

Frequently Asked Questions (FAQ)

Q: Can the TLE42764DV50ATMA1 directly replace the TLE4276DV50ATMA2 in existing designs?

A: Yes. Both devices are pin-compatible in the TO-252-5 package and maintain identical electrical specifications for output voltage, output current, input voltage rating, and dropout voltage. No circuit modifications are required.

Q: What is the significance of the Last Time Buy status on the TLE4276DV50ATMA2?

A: Last Time Buy indicates the manufacturer has ceased production and will not accept new orders beyond a specified cutoff date. Existing inventory is limited to 3,511 units. The TLE42764DV50ATMA1 is the active production equivalent with substantially higher availability.

Q: Are there differences in protection features between these devices?

A: Both devices provide identical protection: over-current, over-temperature, reverse polarity, and short-circuit protection. The control feature differs slightly (Inhibit versus Enable), but both provide functional control capability.

Q: Does the 20 µA quiescent current difference affect circuit design?

A: The quiescent current difference (200 µA to 220 µA) is negligible in automotive applications. This 10% variance does not require design recalculation for typical power management circuits.

Q: Are both devices suitable for automotive applications?

A: Yes. Both the TLE4276DV50ATMA2 and TLE42764DV50ATMA1 carry Automotive grade classification and AEC-Q100 qualification, meeting automotive industry reliability and quality standards.

Q: What packaging options are available for the substitute part?

A: The TLE42764DV50ATMA1 is available in both Cut Tape (CT) and Digi-Reel® packaging, providing flexibility for different procurement and assembly workflows.