AN79L08ME1

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The AN79L08ME1 from Ricoh Electronics is a linear voltage regulator. It belongs to the family of PMIC (Power Management & Integration Circuit) voltage regulators. This voltage regulator has a wide range of applications, distinct advantages and an easy-to-use working principle.

Applications

The AN79L08ME1 has been designed for low voltage applications, and it is particularly suitable for those requiring low output currents. The device is typically used when providing powering a processor or any sink or source in the system, since it offers a wide choice of fixed output voltages, as low as 2.5 V up to as high as 18 V. It is well suited for use in embedded medical systems, audio systems, high speed data acquisition and control systems, industrial applications and other applications where low power and low noise is required. It is also quite suitable for automotive applications in the whole temperature range.

Advantages

The AN79L08ME1 linear voltage regulator presents excellent features. It has fast transient response and maintains a low output voltage noise level, making it suitable for audio and high speed data applications.The device is designed for low dropout voltage applications, providing high efficiency, especially with high drain currents. As for the temperature range and current rating, the AN79L08ME1 offers an impressive performance, raising the efficiency of automotive, medical and industrial applications.

Working Principle

The AN79L08ME1 working principle is based on the typical linear voltage regulator circuit, where an internal voltage reference is compared to a voltage derived from an adjustable resistor, commonly referred to as the set or adjust terminal. The output is simply the difference between the two voltages and is always held at a fixed value.

The typical linear voltage regulator circuit is composed of transistors, resistors and diodes, but in the case of the AN79L08ME1, the schematic is made up strictly of transistors. This allows the device to provide a very low dropout voltage fluctuation and better overall efficiency. Furthermore, the temperature coefficient and line regulation are also reduced, making it a superior device compared to other linear regulator configurations.

In general, the operation of the AN79L08ME1 is straightforward. The voltage at the ground pin sets the threshold for the output voltage. When this threshold is met, the output will shut off, and the regulator is then in its off state. When the ground pin voltage rises, the threshold for the output voltage is met and the regulator will turn on, thus providing power to the system.

The AN79L08ME1 from Ricoh Electronics is a highly efficient and reliable linear voltage regulator. With a wide range of applications and distinct advantages, the device is ideal for audio systems, medical systems, as well as industrial applications and automotive applications. Additionally, the device is quite easy to use, with a straightforward working principle that combines high efficiency, low voltage and fast transient response.

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