STMicroelectronics L7809CD2T-TR Linear Voltage Regulator

Reliable Voltage Regulation for Demanding Applications

The STMicroelectronics L7809CD2T-TR stands as a testament to precision engineering in linear voltage regulation technology. Designed to deliver stable power conversion for industrial and consumer electronics, this fixed-output regulator maintains consistent 9V output while handling up to 1.5A of current. Its TO-263AB power package ensures efficient thermal management, making it ideal for applications requiring reliable performance under varying load conditions.

Technical Excellence in Power Management

Engineered with advanced bipolar technology, this voltage regulator operates efficiently with a maximum dropout voltage of just 2V at 1A typical current. The device's robust architecture includes built-in protection against thermal overload and short circuits, ensuring longevity even in challenging environments. With a maximum input voltage capability of 35V, it offers exceptional flexibility for diverse power supply designs.

Advanced Protection Features

Integrated safety mechanisms make the L7809CD2T-TR particularly suitable for critical applications. The thermal shutdown protection automatically reduces output current when temperatures exceed safe limits, while the short-circuit protection safeguards against accidental load faults. These features combine to create a robust solution that minimizes component failure risks in demanding operational scenarios.

Industrial-Grade Performance

With its surface-mount D²PAK package, this regulator offers excellent thermal dissipation characteristics for high-reliability designs. The device maintains stable operation across its full temperature range (-40°C to +125°C for industrial variants), making it suitable for automotive systems, industrial control equipment, and power supply units requiring consistent voltage regulation under varying environmental conditions.

Design Flexibility

The L7809CD2T-TR's compatibility with standard 3-terminal regulator configurations simplifies circuit design. Engineers can easily implement this component in applications ranging from motor controllers to sensor power supplies. Its 55dB power supply rejection ratio ensures clean output voltage even when working with fluctuating input sources, minimizing noise interference in sensitive electronic systems.

Available in tape-and-reel packaging for automated assembly processes, this AEC-Q100 qualified component meets rigorous automotive industry standards. Its RoHS compliance and halogen-free construction make it suitable for environmentally conscious designs while maintaining exceptional electrical characteristics.

Tags: Voltage Regulation, Power Management, Linear IC, Industrial Electronics, Thermal Protection