The TLE7273-2GV33 is a monolithic integrated circuit from Infineon Technologies designed as a voltage regulator, specifically tailored for automotive applications. It provides a stable and regulated 3.3V output voltage, even under varying input voltage and load conditions. It includes comprehensive protection features to ensure reliable operation in harsh automotive environments.

Applications:

• Microcontroller power supply in automotive ECUs
• Sensor power supply
• CAN transceiver power supply
• General-purpose voltage regulation in automotive systems

Features:

• 3.3V fixed output voltage
• Low dropout voltage
• Overvoltage protection
• Reverse polarity protection
• Short-circuit protection
• Overtemperature protection
• Enable function
• Low quiescent current

Benefits:

• Stable and reliable 3.3V power supply for sensitive electronic components
• Enhanced system reliability through comprehensive protection features
• Reduced system cost by integrating multiple functions into a single IC
• Simplified system design and reduced component count
• Robust performance in harsh automotive environments

Additional Details:

The TLE7273-2GV33 operates from a wide input voltage range, typically from 5.5V to 40V, making it suitable for automotive battery voltage fluctuations. The low dropout voltage ensures that the regulator can maintain a stable 3.3V output even when the input voltage is close to the output voltage. The overvoltage protection prevents damage to the regulator and connected components in case of voltage surges. The reverse polarity protection protects the regulator from damage if the input voltage is accidentally reversed. The short-circuit protection limits the output current in case of a short circuit, preventing damage to the regulator and load. The overtemperature protection shuts down the regulator if the junction temperature exceeds a safe limit, preventing thermal damage. The enable function allows for disabling the regulator to reduce power consumption in standby mode. The low quiescent current further contributes to energy efficiency. The TLE7273-2GV33 is available in a small surface-mount package, making it suitable for space-constrained applications. Infineon provides detailed documentation and support to facilitate the integration of the TLE7273-2GV33 into various systems. The device is compliant with automotive safety standards such as ISO 26262.