The TLE4279GL is a monolithic integrated low-dropout voltage regulator from Siemens (now Infineon Technologies). This regulator is designed for automotive applications and provides a stable 5V output voltage with a low quiescent current and various protection features.

Applications:

• Automotive ECUs: Power supply for engine control units (ECUs).
• Body Control Modules: Regulates voltage in body control modules.
• Instrument Clusters: Provides stable power for instrument clusters in vehicles.
• Sensor Power Supply: Supplies regulated power to sensors in automotive systems.
• General Automotive Electronics: Used in various other automotive electronic systems requiring a stable 5V supply.

Features:

• 5V Output Voltage: Provides a stable and accurate 5V output voltage.
• Low Quiescent Current: Minimizes power consumption in standby mode.
• Low Dropout Voltage: Operates with a low input-output voltage differential.
• Short-Circuit Protection: Protects the regulator and connected circuitry from short circuits.
• Over-Temperature Protection: Shuts down the regulator in case of excessive temperature.
• Reverse Polarity Protection: Protects against damage from reversed input polarity.
• Wide Input Voltage Range: Operates with a wide range of input voltages.

Benefits:

• Stable Power Supply: Provides a stable and accurate 5V supply for sensitive electronic components.
• Low Power Consumption: Minimizes power drain in automotive applications.
• Robust Protection: Protects against various fault conditions, ensuring system reliability.
• Wide Operating Range: Operates reliably under varying automotive conditions.
• Automotive Grade: Designed and tested to meet automotive quality standards.

Additional Details:

The TLE4279GL typically comes in a PG-SCT595-5 package. Key specifications include an input voltage range typically from 6V to 45V, a low quiescent current of around 40 μA, and a dropout voltage of less than 0.5V at a load current of 400 mA. It is designed to operate in harsh automotive environments with temperatures ranging from -40°C to +150°C. The regulator's integrated protection features, such as short-circuit, over-temperature, and reverse polarity protection, ensure reliable operation and prevent damage to the regulator and connected circuitry. The TLE4279GL is a reliable and robust voltage regulator designed specifically for automotive applications, providing a stable 5V supply with low power consumption and comprehensive protection features.