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MC78L12ACD

MC78L12ACD Description

The MC78L12ACD is a fixed-output linear regulator designed for applications requiring a stable and reliable power supply. Manufactured by onsemi, this device is part of the Power Management (PMIC) category and offers a fixed output voltage of 12V with a maximum output current of 100mA. The regulator is housed in an 8SOIC package, making it suitable for surface-mount applications. Despite being marked as obsolete, the MC78L12ACD remains a viable option for specific legacy systems and applications where its unique features and performance benefits are still relevant.

MC78L12ACD Features

• Fixed Output Voltage: The MC78L12ACD provides a stable 12V output voltage, ensuring consistent power delivery to connected devices.
• High Input Voltage Range: With a maximum input voltage of 35V, this regulator can handle a wide range of input voltages, making it versatile for various power supply scenarios.
• Low Quiescent Current: The regulator features a low quiescent current of 6.5 mA, which minimizes power consumption during operation, enhancing overall system efficiency.
• High PSRR: The Power Supply Rejection Ratio (PSRR) of 42dB at 120Hz ensures that the regulator can effectively filter out noise from the input power supply, resulting in a cleaner output voltage.
• Protection Features: The MC78L12ACD includes over-temperature and short-circuit protection, safeguarding both the regulator and connected devices from potential damage.
• Wide Operating Temperature Range: The regulator operates reliably within a temperature range of 0°C to 125°C, making it suitable for applications in various environmental conditions.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the MC78L12ACD is not sensitive to moisture, ensuring robustness in humid environments.
• REACH Compliance: The device is REACH unaffected, adhering to stringent environmental and safety regulations.

MC78L12ACD Applications

The MC78L12ACD is ideal for a variety of applications where a stable 12V power supply is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering small electronic devices and peripherals that require a stable 12V supply.
• Industrial Systems: Suitable for industrial applications where reliability and robustness are critical, such as in control systems and instrumentation.
• Automotive: Can be used in automotive applications where a stable power supply is needed for various electronic components.
• Telecommunications: Provides a reliable power source for low-power telecommunication equipment and modules.

Conclusion of MC78L12ACD

The MC78L12ACD, despite being marked as obsolete, continues to offer significant value in specific applications due to its robust design, high PSRR, and protection features. Its ability to handle a wide input voltage range and low quiescent current makes it an efficient choice for power management in various electronic systems. While newer alternatives may exist, the MC78L12ACD remains a reliable option for legacy systems and applications where its unique features and performance benefits are still highly valued.