TLE4266GSV10HTMA1 Equivalent & Substitute Parts

Part Overview

The TLE4266GSV10HTMA1 is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, designed for positive fixed 10V output at 120mA. This device is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement. The part operates across automotive-grade specifications with AEC-Q100 qualification, making substitute selection critical for applications requiring maintained performance and compliance standards.

Substiute Parts

TLE4266GSV10HTMA1

Infineon TechnologiesIn Stock: 3544TLE4266GSV10HTMA1 Datasheet

Current PartRFQ

TLE4274GV10ATMA2

Infineon TechnologiesIn Stock: 1709TLE4274GV10ATMA2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLE4266GSV10HTMA1 is determined by the following critical parameters:

Output voltage matching at 10V fixed configuration ensures functional compatibility in voltage-dependent circuits. The TLE4274GV10ATMA2 maintains this specification.

Output current capability must meet or exceed the 120mA requirement of the original design. The substitute provides 400mA, exceeding this threshold and enabling use in applications with higher current demands.

Input voltage tolerance (45V maximum for TLE4266GSV10HTMA1 versus 40V for TLE4274GV10ATMA2) represents a design constraint that must be evaluated against actual circuit input conditions.

Voltage dropout characteristics (0.5V @ 100mA for original, 0.5V @ 250mA for substitute) indicate the substitute maintains dropout performance at higher current levels.

Automotive grade and AEC-Q100 qualification are preserved in the substitute, maintaining compliance requirements.

Package form factor differs between parts (SOT223-4 versus TO-263-3-1), requiring PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

The TLE4274GV10ATMA2 is the manufacturer-recommended substitute for the obsolete TLE4266GSV10HTMA1. Both devices maintain OPTIREG™ series architecture with identical 10V fixed output voltage and automotive-grade AEC-Q100 qualification.

The substitute provides enhanced specifications: increased output current capability (400mA versus 120mA), improved quiescent current efficiency (220 µA versus 500 µA), superior PSRR performance (60dB versus 54dB), and extended operating temperature range (-40°C to 150°C versus -40°C to 125°C).

The primary design consideration is input voltage tolerance. The original part accepts up to 45V input, while the substitute is rated to 40V maximum. Circuit designs operating above 40V input require validation against the substitute's specifications.

Package transition from SOT223-4 to TO-263-3-1 (D2PAK) requires PCB layout modification. The TO-263 package offers improved thermal characteristics through its larger form factor and integrated tab, beneficial for applications approaching the 400mA output current limit.

Both parts maintain ROHS3 compliance and REACH unaffected status, preserving regulatory alignment for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can the TLE4274GV10ATMA2 directly replace the TLE4266GSV10HTMA1 without circuit modification?

A: Electrical substitution is valid if circuit input voltage remains below 40V. Package form factor differs (SOT223-4 to TO-263-3-1), requiring PCB layout changes. Pin configuration must be verified against schematic requirements.

Q: What is the significance of the increased output current rating (400mA versus 120mA)?

A: The substitute accommodates higher load currents without exceeding rated specifications. Existing designs drawing less than 120mA operate within the substitute's safe operating area with margin. Thermal management via the larger TO-263 package improves reliability at higher current levels.

Q: How does the quiescent current difference (220 µA versus 500 µA) affect system design?

A: Lower quiescent current in the substitute reduces standby power consumption. This improvement is particularly relevant in battery-powered or low-power automotive applications where standby current contributes to overall system power budget.

Q: Are there any compliance or qualification differences between the two parts?

A: Both parts carry identical automotive-grade classification and AEC-Q100 qualification. RoHS3 compliance and REACH unaffected status are maintained. No compliance gaps exist for automotive applications.

Q: What thermal considerations apply to the package transition?

A: The TO-263-3-1 (D2PAK) package provides superior thermal dissipation compared to SOT223-4 through increased copper area and integrated tab connection. This enables reliable operation at higher output currents and improves thermal stability in high-temperature environments.

Q: Is the 5V input voltage margin loss (45V to 40V) critical for my application?

A: Evaluate your circuit's maximum input voltage under all operating conditions, including transient overvoltage events. If sustained input voltage exceeds 40V, the substitute is not suitable. If input remains below 40V with adequate margin, substitution is valid.