Panasonic

AN77L04M

AN77L04M Description

The AN77L04M is a linear voltage regulator designed by Panasonic Electronic Components, offering a fixed output voltage of 4V with a maximum output current of 100mA. This regulator is designed for surface mount applications and is housed in a 3HSIP package. Despite being marked as obsolete, the AN77L04M remains a reliable choice for applications requiring a stable power supply with a maximum input voltage of 14.66V. The regulator features a quiescent current of 5mA and a power supply rejection ratio (PSRR) of 69dB at 120Hz, ensuring minimal noise and high performance. The AN77L04M also includes protection features such as over current, over temperature, and short circuit protection, making it robust and reliable for various electronic systems.

AN77L04M Features

• Fixed Output Voltage: The AN77L04M provides a stable 4V output, ensuring consistent power supply for sensitive electronic components.
• High Input Voltage Range: With a maximum input voltage of 14.66V, this regulator can accommodate a wide range of input voltages, making it versatile for different power sources.
• Low Quiescent Current: The regulator operates with a quiescent current of only 5mA, which is beneficial for applications where power consumption needs to be minimized.
• High PSRR: A power supply rejection ratio of 69dB at 120Hz ensures that the regulator can effectively filter out noise from the power supply, resulting in cleaner output voltage.
• Protection Features: Over current, over temperature, and short circuit protection features enhance the reliability and durability of the regulator, safeguarding it against common failure modes.
• Surface Mount Technology: The surface mount package type facilitates easy integration into modern PCB designs, ensuring compatibility with automated assembly processes.
• Moisture Sensitivity Level: With an MSL rating of 1 (Unlimited), the AN77L04M is suitable for use in environments with varying humidity levels without the need for special handling precautions.

AN77L04M Applications

The AN77L04M is ideal for a variety of applications where a stable and reliable power supply is essential. Its fixed 4V output and 100mA current capability make it suitable for powering low-power microcontrollers, sensors, and other small electronic devices. The regulator's ability to handle a wide input voltage range and its low quiescent current make it particularly useful in battery-powered devices where efficiency and longevity are critical. Additionally, its robust protection features make it a reliable choice for applications in harsh environments or those prone to voltage fluctuations.

Conclusion of AN77L04M

The AN77L04M, despite being marked as obsolete, remains a valuable component for designers seeking a reliable and efficient linear voltage regulator. Its combination of a fixed 4V output, low quiescent current, and high PSRR makes it an excellent choice for applications requiring stable power with minimal noise. The inclusion of over current, over temperature, and short circuit protection ensures that the regulator can withstand various operational challenges, enhancing its durability and reliability. For applications in need of a compact, efficient, and robust power solution, the AN77L04M stands out as a viable option, especially in scenarios where modern alternatives may not be readily available.