The TLF50251EL is a monolithic integrated voltage regulator IC from Infineon Technologies, specifically designed for automotive applications requiring a stable and regulated power supply. This regulator is characterized by its low quiescent current, high efficiency, and integrated protection features, making it suitable for various automotive electronic control units (ECUs) and other power-sensitive applications. The device provides a regulated output voltage while minimizing power losses and ensuring reliable operation in harsh automotive environments.

Applications

• Automotive body control modules
• Engine management systems
• Transmission control units
• Advanced driver-assistance systems (ADAS)
• Power supply for sensors and microcontrollers

Features

• Low quiescent current
• Wide input voltage range
• Stable output voltage
• Integrated over-temperature protection
• Short-circuit protection
• Reverse polarity protection
• Under-voltage lockout (UVLO)
• Enable function for power saving
• Optimized for automotive applications
• PG-DSO-8 package

Benefits

• Energy Efficiency: Low quiescent current minimizes power consumption, extending battery life in automotive applications.
• Robust Protection: Integrated protection features prevent damage from over-temperature, short circuits, and reverse polarity, ensuring reliable operation.
• Stable Output Voltage: Provides a stable and regulated output voltage, crucial for sensitive electronic components.
• Simplified Design: Requires minimal external components, simplifying the design process and reducing the overall system cost.
• Automotive Compliant: Designed to meet the stringent requirements of automotive applications, ensuring high performance and reliability.
• Wide Input Voltage Range: Operates over a wide input voltage range, accommodating voltage fluctuations in automotive environments.

Additional Details

The TLF50251EL features a wide input voltage range, allowing it to operate with fluctuating automotive power supplies. The integrated over-temperature protection shuts down the regulator if the junction temperature exceeds a safe limit, preventing damage to the device. Short-circuit protection limits the output current in case of a short circuit, protecting both the regulator and the load. Reverse polarity protection prevents damage if the input voltage is accidentally reversed. The under-voltage lockout (UVLO) feature disables the regulator if the input voltage drops below a certain threshold, preventing erratic operation. The TLF50251EL is available in a PG-DSO-8 package and is designed to operate over a wide temperature range. Detailed datasheets provide comprehensive information about the device's electrical characteristics, timing specifications, and application guidelines.