TLE4270DNTMA1 Equivalent & Substitute Parts

Part Overview

The TLE4270DNTMA1 is a linear voltage regulator IC from Infineon Technologies designed for positive fixed 5V output at 650mA in a TO-252-5 surface mount package. This device is classified as obsolete, which necessitates identification of equivalent and substitute components for new designs and production continuity. The part provides integrated protection features including over-current, over-temperature, over-voltage, reverse polarity, short-circuit, and transient voltage protection, making it suitable for industrial and automotive applications requiring regulated 5V power delivery.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	650mA
Input Voltage (Max)	42V
Dropout Voltage (Max)	0.7V @ 550mA
Quiescent Current	1.5 mA
PSRR	54dB (100Hz)
Operating Temperature Range	-40°C to 150°C
Package	TO-252-5 (DPAK, 4 Leads + Tab)
Protection Features	Over Current, Over Temperature, Over Voltage, Reverse Polarity, Short Circuit, Transient Voltage

Substitute Part Grouping Explanation

Substitution for the TLE4270DNTMA1 is determined by the following critical parameters: fixed 5V output voltage, output current capability, input voltage range (maximum 42V), dropout voltage performance, package compatibility (TO-252-5), operating temperature range (-40°C to 150°C), and protection feature set. Substitute parts must maintain these core electrical and mechanical specifications to ensure functional equivalence in existing circuit designs.

Two substitute parts are identified based on parametric alignment:

Parametric Equivalent: TLE42702DATMA1 maintains identical electrical specifications and package format while offering active product status and improved compliance certifications.

Manufacturer Recommended Substitute: TLE4275QKVURQ1 provides functional substitution with trade-offs in output current capability (450mA versus 650mA) and quiescent current performance, offset by superior PSRR and lower supply current requirements.

Parameter Comparison

Parameter	TLE4270DNTMA1	TLE42702DATMA1	TLE4275QKVURQ1
Manufacturer	Infineon Technologies	Infineon Technologies	Texas Instruments
Output Voltage	5V	5V	5V
Output Current	650mA	650mA	450mA
Input Voltage (Max)	42V	42V	42V
Dropout Voltage (Max)	0.7V @ 550mA	0.7V @ 550mA	0.5V @ 300mA
Quiescent Current	1.5 mA	1.5 mA	200 µA
Supply Current (Max)	90 mA	90 mA	22 mA
PSRR	54dB (100Hz)	54dB (100Hz)	60dB (100Hz)
Operating Temperature	-40°C to 150°C	-40°C to 150°C	-40°C to 150°C
Package	TO-252-5	TO-252-5	TO-252-5
Product Status	Obsolete	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant
AEC-Q100 Qualification	Not specified	Yes	Yes

Engineering Selection Recommendations

TLE42702DATMA1 is the direct parametric equivalent for applications requiring full replacement of the TLE4270DNTMA1. This part maintains identical electrical performance across all critical parameters while offering active product status, ROHS3 compliance, and AEC-Q100 automotive qualification. Selection of this substitute eliminates obsolescence risk without circuit redesign.

TLE4275QKVURQ1 serves as a functional alternative for applications where output current demand does not exceed 450mA. This Texas Instruments device provides superior PSRR (60dB versus 54dB), significantly lower quiescent current (200 µA versus 1.5 mA), and reduced supply current (22 mA versus 90 mA), making it advantageous for battery-powered or low-power applications. Both substitute parts carry ROHS3 compliance and AEC-Q100 qualification, supporting automotive and industrial deployment.

Frequently Asked Questions (FAQ)

Q: Can TLE42702DATMA1 be used as a direct drop-in replacement for TLE4270DNTMA1?

A: Yes. TLE42702DATMA1 maintains identical electrical specifications, output current rating (650mA), dropout voltage (0.7V @ 550mA), quiescent current (1.5 mA), PSRR (54dB), and TO-252-5 package format. No circuit modifications are required.

Q: What are the limitations of TLE4275QKVURQ1 as a substitute?

A: TLE4275QKVURQ1 has a reduced output current rating of 450mA compared to the 650mA of TLE4270DNTMA1. Applications requiring sustained output currents above 450mA cannot use this substitute without circuit redesign. Additionally, the dropout voltage specification differs (0.5V @ 300mA versus 0.7V @ 550mA), requiring verification for low input voltage applications.

Q: Are all substitute parts compatible with the TO-252-5 package footprint?

A: Yes. Both TLE42702DATMA1 and TLE4275QKVURQ1 use the TO-252-5 (DPAK, 4 Leads + Tab) package, ensuring mechanical and electrical pin compatibility with existing PCB layouts.

Q: Which substitute is recommended for new automotive designs?

A: Both substitutes carry AEC-Q100 qualification and ROHS3 compliance. TLE42702DATMA1 is recommended for designs requiring the full 650mA output current specification. TLE4275QKVURQ1 is suitable for automotive applications with output current requirements of 450mA or less, offering improved power efficiency through lower quiescent and supply currents.

Q: What is the product status difference between the main part and substitutes?

A: TLE4270DNTMA1 is classified as obsolete, indicating discontinued production and limited availability. Both TLE42702DATMA1 and TLE4275QKVURQ1 maintain active product status with established supply chains and ongoing manufacturer support.

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