TLE42664G

The Infineon TLE42664G is a monolithic integrated low dropout fixed-voltage regulator capable of handling load currents up to 100 mA. It provides a stable 5V output with an accuracy of ±2% for currents up to 50 mA and ±3% for currents up to 100 mA, with an input voltage range up to 45V.

This regulator is specifically designed for applications requiring very low standby currents, such as those with a permanent connection to a vehicle's battery. It features a very low quiescent current of typically 40 µA and can be disabled or enabled via an integrated EN pin. The device is protected against overload, short-circuit, and overtemperature conditions through its output current limitation and overtemperature shutdown circuits.

The TLE42664G is qualified for automotive applications according to AEC-Q100 and is suitable for use in harsh automotive environments. It is available in a compact PG-SOT223-4 surface-mount package and is pin-compatible with TLE4266-2 and TLE4266.

Key features include reverse-polarity protection, overtemperature shutdown, and a wide operating temperature range from -40°C to 150°C, making it a robust choice for general automotive and other applications requiring a stabilized 5V supply.