STMicroelectronics

L79L08ACZ  

Linear & Switching Voltage Regulators

L79L08ACZ Description

The L79L08ACZ is a fixed negative output linear voltage regulator designed by STMicroelectronics. This device is part of the L79L series, known for its reliable performance and robust design. It offers a fixed output voltage of -8V and can deliver a maximum output current of 100mA. The regulator is housed in a Through Hole TO92-3 package, making it suitable for a variety of applications where a negative voltage supply is required. Despite its small form factor, the L79L08ACZ provides excellent performance characteristics, including a low quiescent current of 5.5mA and a power supply rejection ratio (PSRR) of 45dB at 120Hz. The device is designed to operate within a temperature range of 0°C to 125°C, ensuring stability and reliability in diverse environmental conditions. It also features over-temperature and short-circuit protection, enhancing its durability and safety in various electronic circuits.

L79L08ACZ Features

• Output Type: Fixed negative output voltage of -8V.
• Output Current: Capable of delivering a maximum output current of 100mA.
• Number of Regulators: Single regulator per package.
• Output Configuration: Negative output voltage configuration.
• Supply Current: Maximum supply current of 6mA.
• Quiescent Current: Low quiescent current of 5.5mA, ensuring high efficiency.
• PSRR: High power supply rejection ratio of 45dB at 120Hz, providing excellent noise filtering.
• Operating Temperature: Wide operating temperature range from 0°C to 125°C.
• Protection Features: Over-temperature and short-circuit protection for enhanced reliability.
• Compliance: ROHS3 compliant and REACH unaffected, ensuring environmental safety.
• Moisture Sensitivity Level: MSL 3 (168 hours), suitable for standard manufacturing processes.
• Mounting Type: Through Hole, making it easy to integrate into PCB designs.
• Package: Bulk packaging for convenient handling and storage.

L79L08ACZ Applications

The L79L08ACZ is ideal for applications requiring a stable negative voltage supply. Its fixed -8V output and 100mA current capability make it suitable for a wide range of electronic devices and systems. Some specific use cases include:

• Power Supply Circuits: Providing a stable negative voltage rail for analog circuits, operational amplifiers, and other devices that require a negative supply.
• Industrial Control Systems: Ensuring reliable operation in harsh industrial environments due to its wide temperature range and robust protection features.
• Consumer Electronics: Used in devices such as audio equipment, where a negative voltage supply is necessary for certain components.
• Telecommunications: Powering negative voltage circuits in communication devices and infrastructure.
• Automotive Electronics: Suitable for automotive applications where a negative voltage supply is needed for specific components.

Conclusion of L79L08ACZ

The L79L08ACZ from STMicroelectronics is a versatile and reliable linear voltage regulator designed for applications requiring a fixed -8V output. Its low quiescent current, high PSRR, and robust protection features make it an excellent choice for a variety of electronic circuits. Despite being marked as obsolete, the L79L08ACZ continues to offer significant advantages over similar models due to its performance and reliability. Its Through Hole TO92-3 package and wide operating temperature range further enhance its suitability for diverse applications. For engineers and designers seeking a dependable negative voltage regulator, the L79L08ACZ remains a compelling option.

L79L08ACZ Documents

Download datasheets and manufacturer documentation for L79L08ACZ

Datasheets :

L79L00 Series      

HTML Datasheet :

L79L00 Series