STMicroelectronics

L78L24CD

L78L24CD Description

The L78L24CD is a fixed output voltage linear regulator designed for a wide range of applications requiring a stable 24V supply. Manufactured by STMicroelectronics, this device is part of the Power Management Integrated Circuits (PMIC) category. It features a maximum input voltage of 40V and can deliver a continuous output current of up to 100mA. The regulator is housed in a surface-mount 8SO package, making it suitable for compact designs.

L78L24CD Features

• Fixed Output Voltage: The L78L24CD provides a stable output voltage of 24V, ensuring consistent power supply to connected devices.
• High Input Voltage Range: With a maximum input voltage of 40V, the regulator can handle a wide range of input voltages, making it versatile for various applications.
• Low Quiescent Current: The quiescent current of 5.5mA ensures minimal power consumption during operation, enhancing overall system efficiency.
• Protection Features: The regulator includes over-current, over-temperature, and short-circuit protection, safeguarding the device and connected components from potential damage.
• Low Dropout Voltage: The low voltage dropout ensures efficient operation even when the input voltage is close to the output voltage.
• High Power Supply Rejection Ratio (PSRR): At 37dB (120Hz), the regulator effectively reduces noise and ripple from the input supply, ensuring a clean output voltage.
• Wide Operating Temperature Range: The operating temperature range of 0°C to 125°C makes the L78L24CD suitable for applications in various environmental conditions.
• Surface Mount Technology: The surface-mount package type allows for easy integration into modern PCB designs, reducing the overall footprint and enhancing thermal performance.

L78L24CD Applications

The L78L24CD is ideal for a variety of applications where a stable 24V supply is required. Some specific use cases include:

• Industrial Control Systems: Providing a stable power supply for sensors, actuators, and control modules in industrial environments.
• Telecommunications: Supplying power to communication equipment, such as modems and routers, ensuring reliable operation.
• Automotive Electronics: Used in automotive applications where a stable 24V supply is needed for various electronic components.
• Consumer Electronics: Suitable for powering devices such as printers, scanners, and other peripherals that require a stable voltage supply.
• Medical Devices: Ensuring reliable power supply for medical equipment that requires precise voltage regulation.

Conclusion of L78L24CD

The L78L24CD from STMicroelectronics is a robust and reliable linear regulator designed to provide a stable 24V output with a maximum input voltage of 40V. Its low quiescent current, high PSRR, and comprehensive protection features make it an excellent choice for a wide range of applications. The surface-mount package and wide operating temperature range further enhance its versatility and ease of integration. Despite being marked as obsolete, the L78L24CD remains a valuable component for applications requiring a stable and efficient power supply.