TLE4675DATMA1 Equivalent & Substitute Parts

Part Overview

The TLE4675DATMA1 is a linear voltage regulator IC from Infineon Technologies' OPTIREG™ series, delivering a fixed 5V output at 400mA. This automotive-grade component (AEC-Q100 qualified) is designed for applications requiring stable positive voltage regulation with integrated protection features including over-current, over-temperature, reverse polarity, and short-circuit protection. The part is actively produced and widely available in inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

TLE4675DATMA1

Infineon TechnologiesIn Stock: 3027TLE4675DATMA1 Datasheet

Current PartRFQ

NCV4275CDT50RKG

onsemiIn Stock: 25304NCV4275CDT50RKG Datasheet

MFR RecommendedRFQ

NCV8675DT50RKG

onsemiIn Stock: 6374NCV8675DT50RKG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLE4675DATMA1 is determined by the following criteria:

Electrical Compatibility Requirements:

• Fixed 5V output voltage
• Output current capability ≥ 400mA (or within application tolerance)
• Input voltage rating ≥ 45V maximum
• Dropout voltage ≤ 0.5V @ 300mA (or equivalent performance)
• Operating temperature range: -40°C to 150°C minimum
• Automotive grade with AEC-Q100 qualification

Mechanical Compatibility Requirements:

• Package: TO-252-5 (DPAK, 4 Leads + Tab)
• Surface mount configuration
• Pin configuration compatibility

Identified Substitutes:

1. NCV4275CDT50RKG (onsemi) – Higher output current capability (450mA), meets all electrical and mechanical requirements
2. NCV8675DT50RKG (onsemi) – Lower output current (350mA), superior PSRR (70dB), enhanced protection features

Both substitutes maintain automotive qualification, AEC-Q100 compliance, identical package configuration, and compatible operating temperature ranges.

Parameter Comparison

Engineering Selection Recommendations

TLE4675DATMA1 (Primary Part): Active production status with established supply chain. Infineon OPTIREG™ series designation indicates optimized regulation characteristics. Suitable for applications requiring 400mA output current with standard PSRR performance.

NCV4275CDT50RKG (Substitute – Higher Current Capacity): Recommended for applications where output current demand may approach or exceed 400mA. The 450mA rating provides 12.5% additional headroom. Input voltage maximum of 42V is 3V lower than the primary part; verify input supply specifications before selection. Quiescent current is elevated at 150 µA compared to 80 µA on the primary part, affecting standby power consumption in battery-powered applications.

NCV8675DT50RKG (Substitute – Lower Current, Enhanced Performance): Suitable for applications where output current requirement is ≤ 350mA. Superior PSRR (70dB vs. 65dB) benefits noise-sensitive analog circuits. Quiescent current of 45 µA is the lowest among the three options, advantageous for low-power standby operation. Dropout voltage specification of 0.6V @ 350mA is marginally higher; confirm compatibility with minimum input voltage margins in the target application.

All three parts maintain automotive-grade qualification and AEC-Q100 compliance, ensuring suitability for automotive and industrial applications requiring equivalent reliability standards.

Frequently Asked Questions (FAQ)

Q: Can NCV4275CDT50RKG replace TLE4675DATMA1 in all applications?

A: NCV4275CDT50RKG is mechanically and electrically compatible for applications requiring ≤ 450mA output current. The input voltage maximum is 42V versus 45V on the primary part. Verify that your input supply does not exceed 42V. The higher quiescent current (150 µA vs. 80 µA) may impact standby power consumption.

Q: Is NCV8675DT50RKG suitable for 400mA applications?

A: NCV8675DT50RKG is rated for 350mA maximum output current. It is not suitable for applications requiring sustained 400mA output. Use only in applications where peak current demand does not exceed 350mA.

Q: Are all three parts in the same package?

A: Yes. All three parts use TO-252-5 (DPAK, 4 Leads + Tab) surface mount package with identical pinout compatibility.

Q: What is the difference in PSRR between these parts?

A: PSRR (Power Supply Rejection Ratio) measures the regulator's ability to reject input voltage noise. NCV8675DT50RKG provides 70dB at 100Hz, compared to 65dB for TLE4675DATMA1 and 60dB for NCV4275CDT50RKG. Higher PSRR is beneficial for applications with noisy input supplies or sensitive analog circuits.

Q: Do all parts meet automotive qualification requirements?

A: Yes. All three parts are automotive-grade with AEC-Q100 qualification, RoHS3 compliance, and identical operating temperature range (-40°C to 150°C).

Q: What is the impact of different dropout voltages?

A: Dropout voltage determines the minimum input-to-output voltage differential required for regulation. TLE4675DATMA1 and NCV4275CDT50RKG both specify 0.5V @ 300mA. NCV8675DT50RKG specifies 0.6V @ 350mA. In applications with marginal input voltage headroom, the lower dropout voltage of the primary part or NCV4275CDT50RKG may be preferable.