STMicroelectronics

L78S15CV-DG

L78S15CV-DG Description

The L78S15CV-DG is a fixed-output linear voltage regulator designed and manufactured by STMicroelectronics, a leading global semiconductor company. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in a through-hole TO220 package. It is designed to provide a stable 15V output voltage with a maximum input voltage of 35V and a continuous output current of up to 2A. The regulator features a positive output configuration and includes protection mechanisms such as over-current, over-temperature, and short-circuit protection to ensure reliable operation.

L78S15CV-DG Features

• Fixed Output Voltage: The L78S15CV-DG provides a stable 15V output, making it suitable for applications requiring a fixed voltage supply.
• High Input Voltage Range: With a maximum input voltage of 35V, this regulator can handle a wide range of input voltages, enhancing its versatility.
• High Output Current: Capable of delivering up to 2A of output current, it is well-suited for applications requiring significant power.
• Low Quiescent Current: The regulator operates with a quiescent current of only 8 mA, ensuring high efficiency and minimal power loss.
• High Power Supply Rejection Ratio (PSRR): At 46dB (120Hz), the L78S15CV-DG effectively filters out noise from the input power supply, resulting in a cleaner output voltage.
• Protection Features: Over-current, over-temperature, and short-circuit protection mechanisms safeguard the regulator and connected circuits from damage.
• Wide Operating Temperature Range: The regulator operates reliably within a temperature range of 0°C to 150°C, making it suitable for both industrial and consumer applications.
• Compliance: The L78S15CV-DG is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Packaging: The device is available in a tube package, facilitating easy handling and storage.

L78S15CV-DG Applications

The L78S15CV-DG is ideal for a variety of applications where a stable 15V supply is required. Some specific use cases include:

• Power Supply Units: Ideal for providing a stable voltage to power electronic circuits and devices.
• Industrial Equipment: Suitable for industrial applications where reliability and high power output are crucial.
• Consumer Electronics: Can be used in consumer devices that require a fixed voltage supply.
• Automotive Systems: Given its wide operating temperature range and robust protection features, it is well-suited for automotive applications.
• Telecommunications: Provides a reliable power source for telecom equipment and infrastructure.

Conclusion of L78S15CV-DG

The L78S15CV-DG is a robust and versatile linear voltage regulator that offers a stable 15V output with a high current capacity. Its low quiescent current and high PSRR ensure efficient operation and minimal noise, while its comprehensive protection features enhance reliability. Despite being marked as obsolete, the L78S15CV-DG remains a valuable component for applications requiring a fixed voltage supply. Its compliance with environmental and safety standards further solidifies its position as a reliable choice for power management solutions.