Panasonic

AN79L20ME1

AN79L20ME1 Description

The AN79L20ME1 is a linear voltage regulator designed by Panasonic Electronic Components, featuring a fixed negative output voltage of -20V and a maximum output current of 100mA. This regulator is housed in a Surface Mount package, specifically a 3HSIP, making it suitable for compact and space-constrained applications. The device operates within a temperature range of 0°C to 100°C, ensuring reliable performance in various environmental conditions. With a quiescent current of only 5mA, the AN79L20ME1 is highly efficient, minimizing power consumption during operation.

AN79L20ME1 Features

• Operating Temperature Range: 0°C to 100°C, ensuring stable performance across a wide range of ambient temperatures.
• Low Quiescent Current: 5mA, which is crucial for applications requiring low power consumption, especially in standby or sleep modes.
• High PSRR: 49dB at 120Hz, providing excellent noise rejection and ensuring a clean output voltage, which is essential for sensitive analog circuits.
• Fixed Negative Output: -20V, making it suitable for applications requiring a stable negative supply voltage.
• Output Current Capability: 100mA, sufficient for driving small to medium-sized loads.
• Protection Features: Over-current and over-temperature protection, safeguarding the regulator and connected circuits from damage due to excessive current or temperature.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), indicating the device is not sensitive to moisture, simplifying handling and storage requirements.
• Packaging: Tape & Reel (TR), facilitating automated assembly processes and ensuring high reliability during manufacturing.

AN79L20ME1 Applications

The AN79L20ME1 is ideal for a variety of applications where a stable negative voltage supply is required. Some specific use cases include:

• Analog Circuits: Providing a clean and stable -20V supply for sensitive analog components such as operational amplifiers, ADCs, and DACs.
• Medical Devices: Ensuring reliable power supply for critical medical equipment that requires precise voltage regulation.
• Industrial Control Systems: Offering a robust power solution for industrial applications that operate in varying temperature conditions.
• Consumer Electronics: Suitable for powering small electronic devices where space is limited and low power consumption is essential.

Conclusion of AN79L20ME1

The AN79L20ME1 from Panasonic is a versatile and reliable linear voltage regulator designed for applications requiring a stable -20V supply. Its low quiescent current, high PSRR, and comprehensive protection features make it a superior choice over similar models. The Surface Mount package and wide operating temperature range further enhance its suitability for a broad range of applications. Despite being marked as obsolete, the AN79L20ME1 remains a valuable component for designers seeking a dependable and efficient power solution.