The TLE42994V33 is a monolithic integrated low drop voltage regulator from Infineon Technologies. It's specifically designed for automotive applications where a stable and regulated 3.3V supply voltage is required, even under harsh operating conditions. The device incorporates several protection features, making it robust and reliable for automotive environments.

Applications

• Automotive electronic control units (ECUs)
• Microcontroller power supply in automotive systems
• Body control modules
• Dashboard electronics
• Sensor power supply in automotive applications

Features

• 3.3V fixed output voltage
• Low dropout voltage
• Wide input voltage range
• Overtemperature protection
• Short-circuit protection
• Reverse polarity protection
• Reset function

Benefits

• Stable and regulated voltage: Provides a stable and regulated 3.3V supply voltage, ensuring reliable operation of connected devices.
• Enhanced system reliability: The protection features (overtemperature, short-circuit, reverse polarity) enhance system reliability and prevent damage to components.
• Robust performance in harsh environments: Designed for automotive applications, it operates reliably under harsh temperature, voltage, and electrical noise conditions.
• Simplified design: Integrated reset function simplifies the design process and reduces the number of external components required.
• Low quiescent current: Minimizes power consumption, improving energy efficiency in automotive systems.

Additional Details

The TLE42994V33 is designed to operate over a wide temperature range, typically from -40°C to +150°C, making it suitable for under-the-hood automotive applications. The low dropout voltage ensures that the regulator can maintain a stable output voltage even when the input voltage is close to the output voltage. The reset function provides a reset signal to connected microcontrollers during power-up or under voltage conditions. The device is typically available in a small surface-mount package to enable high-density board design. It usually also has undervoltage lockout.