STMicroelectronics

L79L05ACZ-AP

L79L05ACZ-AP Description

The L79L05ACZ-AP is a linear voltage regulator designed by STMicroelectronics, offering a fixed output voltage of -5V with a maximum output current of 100mA. This regulator is housed in a TO92-3 package and is suitable for through-hole mounting. It features a negative output configuration, making it ideal for applications requiring a stable negative voltage supply. The regulator is designed to operate within a temperature range of 0°C to 125°C, ensuring reliable performance in various environmental conditions.

L79L05ACZ-AP Features

• Output Type: Fixed at -5V, providing a stable and consistent voltage output.
• Current - Output: Capable of delivering up to 100mA, suitable for low to medium current applications.
• Number of Regulators: Single regulator design, simplifying circuit design and reducing component count.
• Output Configuration: Negative output voltage, ideal for applications requiring a negative supply rail.
• Current - Supply (Max): Maximum supply current of 6mA, ensuring efficient power usage.
• Product Status: Obsolete, but still available for legacy systems and specific applications.
• REACH Status: REACH Unaffected, ensuring compliance with environmental and safety regulations.
• RoHS Status: ROHS3 Compliant, meeting stringent environmental standards.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), suitable for storage and handling in various environments.
• Operating Temperature: Wide range of 0°C to 125°C, ensuring reliability in diverse operating conditions.
• Current - Quiescent (Iq): Low quiescent current of 5.5mA, enhancing efficiency in low-power applications.
• PSRR: High power supply rejection ratio of 49dB at 120Hz, ensuring minimal noise and ripple in the output voltage.
• Protection Features: Over-temperature and short-circuit protection, safeguarding the regulator and connected components from damage.
• Mounting Type: Through-hole, providing robust mechanical stability and ease of integration into PCB designs.
• Package: Tape & Box (TB), ensuring safe and efficient packaging for distribution and storage.

L79L05ACZ-AP Applications

The L79L05ACZ-AP is well-suited for a variety of applications where a stable negative voltage supply is required. Key use cases include:

• Telecommunications: Providing stable power to analog and digital circuits in communication equipment.
• Consumer Electronics: Powering negative voltage rails in devices such as audio amplifiers and video processors.
• Industrial Controls: Ensuring reliable operation of control systems and sensors that require a negative supply voltage.
• Medical Devices: Supplying power to sensitive medical equipment where stability and reliability are paramount.
• Automotive Electronics: Supporting various electronic systems within vehicles that require a negative voltage supply.

Conclusion of L79L05ACZ-AP

The L79L05ACZ-AP from STMicroelectronics is a robust and reliable linear voltage regulator designed for applications requiring a stable -5V output. Its low quiescent current, high PSRR, and comprehensive protection features make it an ideal choice for a wide range of electronic systems. Despite being marked as obsolete, the L79L05ACZ-AP remains a viable option for legacy systems and specific applications where its unique features and performance benefits are crucial. Its compliance with REACH and RoHS3 standards ensures that it meets the highest environmental and safety regulations, making it a responsible choice for modern electronics design.