TLE4274G V10 Equivalent & Substitute Parts

Part Overview

The TLE4274G V10 is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, designed for positive fixed 10V output applications with 400mA current capability. This automotive-grade component (AEC-Q100 qualified) features integrated protection against overcurrent, overtemperature, reverse polarity, and short circuit conditions. The part is currently classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Key Parameters

Parameter	Value
Manufacturer Part Number	TLE4274G V10
Manufacturer	Infineon Technologies
Category	Power Management (PMIC)
Series	OPTIREG™
Product Status	Obsolete
Output Configuration	Positive
Output Type	Fixed
Voltage - Output (Fixed)	10V
Voltage - Input (Max)	40V
Current - Output	400mA
Voltage Dropout (Max)	0.5V @ 250mA
Current - Quiescent (Iq)	220 µA
PSRR	60dB (100Hz)
Operating Temperature	-40°C ~ 150°C
Grade	Automotive
Qualification	AEC-Q100
Package / Case	TO-263-4, D2PAK (3 Leads + Tab)
Mounting Type	Surface Mount
Protection Features	Over Current, Over Temperature, Reverse Polarity, Short Circuit

Substitute Part Grouping Explanation

Substitution eligibility for the TLE4274G V10 is determined by the following critical parameters:

Mandatory Matching Criteria:

Output voltage: Fixed 10V output
Output current capability: 400mA minimum
Input voltage range: Maximum 40V
Voltage dropout: 0.5V @ 250mA
Automotive grade with AEC-Q100 qualification
Surface mount packaging compatible with TO-263 footprint family
Protection features: Over current, over temperature, reverse polarity, short circuit

Allowable Variations:

Product status transition from obsolete to active
Package variant within TO-263 family (TO-263-4 to TO-263-6)
Output type modification (fixed to adjustable with fixed 10V configuration capability)
Quiescent current and PSRR within acceptable operational ranges
RoHS compliance status

Two substitute parts meet these criteria with documented compatibility.

Parameter Comparison

Parameter	TLE4274G V10 (Main)	TLE4274GV10ATMA2 (Parametric Equivalent)	TLE42764GVATMA1 (MFR Recommended)
Manufacturer	Infineon Technologies	Infineon Technologies	Infineon Technologies
Series	OPTIREG™	OPTIREG™	OPTIREG™
Product Status	Obsolete	Active	Active
Output Type	Fixed	Fixed	Adjustable
Voltage - Output	10V	10V	2.5V - 20V (adjustable)
Voltage - Input (Max)	40V	40V	40V
Current - Output	400mA	400mA	400mA
Voltage Dropout (Max)	0.5V @ 250mA	0.5V @ 250mA	0.5V @ 250mA
Current - Quiescent (Iq)	220 µA	220 µA	220 µA
PSRR	60dB (100Hz)	60dB (100Hz)	54dB (100Hz)
Operating Temperature	-40°C ~ 150°C	-40°C ~ 150°C	-40°C ~ 150°C
Grade	Automotive	Automotive	Automotive
Qualification	AEC-Q100	AEC-Q100	AEC-Q100
Package / Case	TO-263-4, D2PAK (3 Leads + Tab)	TO-263-4, D2PAK (3 Leads + Tab)	TO-263-6, D2PAK (5 Leads + Tab)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Protection Features	Over Current, Over Temperature, Reverse Polarity, Short Circuit	Over Current, Over Temperature, Reverse Polarity, Short Circuit	Over Current, Over Temperature, Reverse Polarity, Short Circuit
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

TLE4274GV10ATMA2 (Parametric Equivalent): This part provides direct parametric equivalence to the TLE4274G V10 with identical electrical specifications and package footprint. The transition from obsolete to active product status ensures long-term availability and supply chain continuity. ROHS3 compliance meets current environmental regulations. This option is suitable for direct replacement in existing designs without circuit modification.

TLE42764GVATMA1 (MFR Recommended): This adjustable output variant from Infineon Technologies offers functional flexibility while maintaining the same 400mA output current, 40V maximum input voltage, and automotive AEC-Q100 qualification. When configured for fixed 10V output, it delivers equivalent performance to the main part. The TO-263-6 package (5 leads + tab) provides additional design flexibility. PSRR is 6dB lower (54dB vs 60dB at 100Hz). This option is recommended for new designs requiring output voltage flexibility or when TO-263-6 package compatibility is available.

Both substitutes maintain automotive-grade specifications and AEC-Q100 qualification, ensuring compliance with automotive reliability standards.

Frequently Asked Questions (FAQ)

Q: Can TLE4274GV10ATMA2 be used as a direct drop-in replacement for TLE4274G V10? A: Yes. TLE4274GV10ATMA2 maintains identical electrical parameters, fixed 10V output, 400mA current capability, and TO-263-4 package footprint. No circuit modifications are required.

Q: What is the primary difference between TLE4274GV10ATMA2 and TLE42764GVATMA1? A: TLE4274GV10ATMA2 is a fixed 10V output regulator in TO-263-4 package. TLE42764GVATMA1 is an adjustable output regulator (2.5V-20V) in TO-263-6 package with one additional lead. Both deliver 400mA output current and meet automotive specifications.

Q: Can TLE42764GVATMA1 replace TLE4274G V10 in existing PCB layouts? A: TLE42764GVATMA1 uses TO-263-6 package (5 leads + tab) versus the original TO-263-4 package (3 leads + tab). PCB footprint compatibility must be verified. The additional leads require layout modification.

Q: Are both substitute parts automotive qualified? A: Yes. Both TLE4274GV10ATMA2 and TLE42764GVATMA1 carry AEC-Q100 qualification and automotive-grade designation, meeting automotive reliability and environmental standards.

Q: What is the availability status of these substitutes? A: TLE4274GV10ATMA2 has 1632 pcs in stock. TLE42764GVATMA1 has 2100 pcs in stock. Both are active products with ongoing manufacturer support.

Q: Do the substitute parts have the same protection features? A: Yes. Both substitutes include overcurrent, overtemperature, reverse polarity, and short circuit protection, matching the original TLE4274G V10 protection feature set.

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