The Infineon TLE4274DV3 is a monolithic integrated low dropout voltage regulator (LDO) designed for automotive and industrial applications. It provides a stable and regulated 5V output voltage with a current capability of up to 400mA. The regulator is designed to withstand harsh automotive environments and offers various protection features.

Applications:

• Automotive ECUs (Engine Control Units).
• Body Control Modules (BCM).
• Dashboard Electronics.
• Industrial Control Systems.
• Microcontroller Power Supplies.

Features:

• Output Voltage: 5V ±2% accuracy.
• Low Dropout Voltage: Ensures stable output voltage even with low input voltage.
• Output Current Capability: Up to 400mA.
• Wide Input Voltage Range: 6V to 42V.
• Overvoltage Protection: Protects the regulator and connected loads from overvoltage conditions.
• Short Circuit Protection: Protects the regulator from damage due to short circuits.
• Overtemperature Protection: Shuts down the regulator in case of excessive temperature.
• Reverse Polarity Protection: Protects the regulator from damage if the input voltage is connected with reverse polarity.
• Reset Function: Provides a reset signal to a microcontroller when the output voltage drops below a certain threshold.

Benefits:

• Stable Power Supply: Provides a stable and regulated 5V output voltage for sensitive electronic components.
• Robust Protection: Comprehensive protection features ensure reliable operation in harsh environments.
• Easy Integration: Simple external circuitry required for operation.
• Automotive Qualified: Meets the stringent requirements of the automotive industry.
• Improved System Reliability: Protection features prevent damage to the regulator and connected loads, enhancing system reliability.

Additional Details:

The TLE4274DV3 is typically packaged in a PG-DSO-8 package. It features a quiescent current of typically 4mA. The dropout voltage is typically 350mV at 400mA. The regulator also includes a reset output with a programmable delay time. Further technical details, including thermal resistance and transient response, can be found in the Infineon datasheet.

This LDO regulator is designed for applications requiring a reliable and protected 5V power supply. Its automotive qualification and comprehensive protection features make it a suitable choice for automotive electronics and other demanding applications.