STMicroelectronics

L6935TR

L6935TR Description

The L6935TR is a high-performance linear voltage regulator designed for demanding automotive applications. Manufactured by STMicroelectronics, this regulator offers an adjustable output voltage ranging from 0.5V to 3V, making it suitable for a variety of power management needs. With a maximum input voltage of 5V and the ability to deliver up to 3A of output current, the L6935TR ensures reliable power delivery even under varying load conditions. The regulator features a positive output configuration and is designed for surface-mount applications, enhancing its versatility in compact designs.

L6935TR Features

• Adjustable Output Voltage: The L6935TR provides an adjustable output voltage range from 0.5V to 3V, offering flexibility to meet specific application requirements.
• High Current Capability: Capable of delivering up to 3A of output current, this regulator is well-suited for applications requiring high power delivery.
• Low Quiescent Current: With a quiescent current of only 3 mA, the L6935TR minimizes power consumption during standby, enhancing overall system efficiency.
• Enhanced Control Features: The regulator includes enable, power good, and soft start features, providing precise control over power delivery and ensuring smooth startup.
• Protection Features: Over-current, over-temperature, and short-circuit protection mechanisms safeguard the regulator and connected components from damage.
• High Power Supply Rejection Ratio (PSRR): The L6935TR offers a PSRR of 45dB in the 100Hz to 120Hz range, ensuring stable output voltage even in the presence of input voltage variations.
• Automotive Grade: Certified for automotive use, the L6935TR meets stringent reliability and performance standards required for automotive electronics.
• Moisture Sensitivity Level (MSL): Rated at MSL 3 (168 Hours), the regulator is suitable for surface-mount assembly processes without requiring special handling procedures.
• Compliance: The L6935TR is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and regulatory standards.

L6935TR Applications

The L6935TR is ideal for a range of automotive applications where high current and adjustable voltage regulation are critical. Specific use cases include:

• Automotive Electronics: Powering electronic control units (ECUs), infotainment systems, and other automotive electronics that require stable and adjustable voltage supply.
• Battery Management Systems: Ensuring reliable power delivery to battery management systems, enhancing the efficiency and longevity of automotive batteries.
• On-Board Diagnostics (OBD): Providing stable power to OBD systems, ensuring accurate and reliable diagnostics.
• LED Lighting Systems: Driving high-brightness LED lights, where precise voltage control and high current capability are essential for optimal performance.

Conclusion of L6935TR

The L6935TR from STMicroelectronics is a robust and versatile linear voltage regulator designed to meet the demanding requirements of automotive applications. Its adjustable output voltage range, high current capability, and advanced control and protection features make it an ideal choice for a variety of automotive power management solutions. Despite being marked as obsolete, the L6935TR remains a reliable option for existing designs and offers significant advantages over similar models in terms of performance and reliability.