STMicroelectronics

L78L12ACD

L78L12ACD Description

The L78L12ACD is a linear voltage regulator IC manufactured by STMicroelectronics, designed to provide a stable 12V output with a maximum output current of 100mA. This device is part of the Linear & Switching Voltage Regulators category and is offered in an 8SO package. Despite being classified as obsolete, it remains a popular choice for certain applications due to its reliable performance and compliance with industry standards.

L78L12ACD Features

• Output Type: Fixed, ensuring a consistent output voltage.
• Voltage - Input (Max): 35V, allowing for a wide range of input voltages.
• Current - Output: 100mA, suitable for low to medium power applications.
• Number of Regulators: 1, providing a single output.
• Output Configuration: Positive, ideal for applications requiring a positive voltage reference.
• Current - Supply (Max): 6.5 mA, indicating low power consumption.
• Product Status: Obsolete, but still available and functional.
• REACH Status: REACH Unaffected, ensuring compliance with European chemical regulations.
• RoHS Status: ROHS3 Compliant, adhering to environmental standards.
• Moisture Sensitivity Level (MSL): 3 (168 Hours), indicating a moderate level of moisture resistance.
• Operating Temperature: 0°C ~ 125°C, suitable for a wide range of environments.
• Current - Quiescent (Iq): 6 mA, contributing to low power consumption.
• PSRR: 42dB (120Hz), providing good power supply rejection ratio.
• Protection Features: Over Current, Over Temperature, Short Circuit, ensuring device safety.
• Mounting Type: Surface Mount

L78L12ACD Applications

The L78L12ACD is ideal for applications where a stable and reliable 12V power supply is required, such as:

• Industrial Control Systems: Providing a stable power source for microcontrollers and sensors.
• Consumer Electronics: Powering low-power devices in home appliances.
• Telecommunications: Offering a reliable voltage reference for communication equipment.

Conclusion of L78L12ACD

While the L78L12ACD is classified as obsolete, it remains a robust choice for applications requiring a fixed 12V output with low to medium current demands. Its compliance with RoHS and REACH standards, along with its protection features, make it a reliable option for designers looking for a stable and compliant voltage regulator. Despite its age, the L78L12ACD continues to offer performance benefits and unique advantages over similar models, making it suitable for a variety of applications where a dependable power supply is crucial.