STMicroelectronics

L7809ABV

L7809ABV Description

The L7809ABV is a linear voltage regulator IC manufactured by STMicroelectronics. It belongs to the category of Linear & Switching Voltage Regulators. This device is designed to provide a fixed positive output voltage of 9V with a maximum output current of 1.5A. The L7809ABV is an obsolete product, but it remains a popular choice for various applications due to its unique features and advantages.

L7809ABV Features

• Fixed Output Type: The L7809ABV provides a fixed output voltage, ensuring stable and consistent power supply.
• Wide Input Voltage Range: With a maximum input voltage of 35V, the L7809ABV can handle a wide range of input voltages.
• High Output Current: Capable of delivering up to 1.5A of output current, making it suitable for applications requiring high current.
• Single Regulator: The L7809ABV features a single output regulator, simplifying the design and reducing component count.
• Low Dropout Voltage: The maximum dropout voltage is 2V at 1A, ensuring efficient power conversion.
• Low Quiescent Current: The L7809ABV consumes only 6mA of quiescent current, reducing power loss in standby mode.
• Over Temperature and Short Circuit Protection: The device is equipped with built-in protection features to safeguard against potential damage.
• RoHS Compliance: The L7809ABV is compliant with RoHS3 regulations, making it suitable for environmentally friendly applications.
• REACH Unaffected: The device is not affected by REACH regulations, ensuring uninterrupted supply and use.

L7809ABV Applications

The L7809ABV is ideal for various applications where a stable and reliable power supply is required. Some specific use cases include:

1. Power Supplies: The L7809ABV can be used in linear power supply designs, providing a stable 9V output for various electronic devices.
2. Automotive Applications: Due to its wide input voltage range, the L7809ABV is suitable for automotive applications where input voltages can vary significantly.
3. Industrial Equipment: The device can be used in industrial equipment that requires a stable 9V power supply, such as sensors and control systems.
4. Telecommunications: The L7809ABV can be used in telecommunications equipment, providing a stable power supply for signal processing and transmission.

Conclusion of L7809ABV

The L7809ABV is a reliable and efficient linear voltage regulator, offering a fixed positive output voltage of 9V with a maximum output current of 1.5A. Its unique features, such as low dropout voltage, low quiescent current, and built-in protection features, make it an ideal choice for various applications. Although the L7809ABV is an obsolete product, its performance benefits and advantages continue to make it a popular choice in the electronics industry.