Infineon Technologies TLE4274DV50 LDO Voltage Regulator

The TLE42744DV50 is a linear voltage regulator from Infineon Technologies, designed for low drop voltage regulation. Here is the basic information about this product along with its technical specifications, performance parameters, packaging, physical properties, applications, design and usage suggestions, and potential selection alternatives:

Basic Information

• Manufacturer: Infineon Technologies
• Product Type: Low Drop Voltage Regulator
• Part Number: TLE42744DV50
• Package: PG-TO252-3-11 (RoHS compliant)
• Description: The TLE4274 is available in various output voltage versions (5V, 8.5V, or 10V) and package types, including TO220, TO252, and TO263.

Technical Specifications and Performance Parameters

• Output Voltage: 5V, 8.5V, or 10V (depending on the version)
• Output Voltage Tolerance: ≤ ±4%
• Current Capability: 400 mA
• Drop Voltage: Low-drop voltage specification not provided, but implied to be low for the regulator’s design
• Current Consumption: Very low, not specified in the provided excerpt
• Protection Features: Short-circuit proof, reverse polarity proof, overload protection, overtemperature protection
• Regulation Stability: Guaranteed with output capacitor CQ ≥ 22 μF and an ESR of ≤ 3 Ω within the operating temperature range

Packaging and Physical Properties

• Package Type: PG-TO252-3-11
• Dimensions: Specific package dimensions are detailed in the datasheet with various tolerances provided.
• Lead/Terminal Material: Metal surfaces are tin plated, except the area of cut.
• RoHS Compliance: The product is RoHS compliant, indicating it is environmentally friendly and free from specific hazardous substances.

Applications and Practical Cases

• Automotive Electronics: Suitable for use in automotive applications
• General Linear Regulation: For applications requiring stable and low-noise voltage regulation
• AEC Qualified: Meets the quality standards required for use in automotive electronics

Design and Usage Suggestions

• Input Capacitor (CI): Necessary for compensating line influences; a series resistor of approximately 1 Ω can help damp oscillations.
• Output Capacitor (CQ): Essential for the stability of the regulation circuit.
• Thermal Management: The TAB pin should be connected to the heatsink and GND to improve thermal performance.

Selection and Alternatives

• Alternative Versions: The TLE4274 is available in different output voltage versions and package types, allowing designers to select the most appropriate part for their specific requirements.
• Other Regulators: Depending on the application, other linear or switching regulators with similar specifications could be considered.
• Competitor Products: It’s common to also evaluate products from other manufacturers like STMicroelectronics, Texas Instruments, or ON Semiconductor for potential alternatives.