The TLE4275 is a monolithic integrated low-dropout voltage regulator from Infineon Technologies. It is designed to supply automotive systems, particularly those requiring a stable 5V supply voltage, even under harsh operating conditions. The regulator integrates protection features and is optimized for low quiescent current consumption.

Applications

• Automotive Electronic Control Units (ECUs)
• Microcontroller Power Supplies
• Sensor Power Supplies in Automotive Applications
• General Automotive Power Management

Features

• Output Voltage: Regulated 5V output.
• Low Dropout Voltage: Ensures stable output voltage even with low input voltage.
• Low Quiescent Current: Minimizes current consumption in standby mode.
• Short Circuit Protection: Protects the regulator and the load from short circuits.
• Overtemperature Protection: Shuts down the regulator in case of overheating.
• Reverse Polarity Protection: Protects against reverse polarity connections.
• Overvoltage Protection: Protects the load from excessive input voltage.
• Reset Function: Provides a reset signal for microcontrollers.
• Enable Function: Allows the regulator to be switched on or off externally.

Benefits

• Stable Power Supply: Provides a stable 5V supply voltage for critical automotive systems.
• Extended Battery Life: Low quiescent current reduces battery drain.
• Robust Protection: Integrated protection features enhance system reliability.
• Simplified Design: Minimal external components required.
• Automotive Qualified: Designed and tested for automotive applications.

Additional Details

The TLE4275 is typically available in a PG-DSO-8 package, suitable for surface mounting. It is designed to operate over a wide temperature range, typically -40°C to +150°C, making it suitable for automotive environments. The device features a reset output, which can be used to monitor the output voltage and reset the microcontroller if the voltage falls below a certain threshold. An enable input allows the regulator to be switched on and off externally. This LDO regulator is a reliable and efficient solution for supplying power to automotive electronic systems, ensuring stable operation and protecting against potential faults.