AS1901C26

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Modern electronic equipment is always equipped with several circuits such as digital control unit, power supply, signal processing circuit and general circuit protection. Power management integrated circuit, or PMIC, provides a wide range of different functions, often integrated into one chip, to provide an economical and effective solution to manage these circuits in a system. This article will discuss one of the popular PMICs, the AS1901C26, and its application field and working principle.

The AS1901C26 is a low-dropout voltage regulator, also known as LDO, with high providing efficiency and low power consumption, designed for highly integrated integrated systems such as tablets, netbooks, notebook computers, and embedded systems. It contains a protection circuit, a power-on reset circuit, a power supply control circuit, an output voltage adjustment circuit, and a reference voltage unit. The protection circuit provides over-current protection, short-circuit protection, thermal protection and over-temperature protection for the system. In addition, it monitors the input voltage to ensure that the LDO does not exceed the maximum allowed voltage and can cut back the current when the input voltage is too high.

The power-on reset circuit turns on the power-up reset signal when the input voltage rises above the required level, making it suitable for circuit protection during power-up conditions. The power supply control circuit provides power supply line control based on the capacity and dynamic behavior of the system. It can regulate the system load during peak demands, preventing any damage due to overloading. The output voltage adjustment circuit can adjust the output voltage dynamically to meet the system requirement.

The reference voltage unit maintains the accuracy of the power supply by monitoring the output voltage. It can be adjusted to provide a higher or lower output voltage over time, depending on the system needs. Furthermore, the AS1901C26 has a built-in watchdog timer to continuously monitor the system and to automatically reset the device in case of any errors.

The AS1901C26 is suitable for use in systems with a wide input voltage range, from 3.3V to 25V, making it suitable for a wide range of applications. In addition, it has a very low quiescent current of 0.1uA, which makes it ideal for battery-operated systems. In terms of its protection features, it provides protection against over current, over voltage, under voltage, thermal overload, and open-circuit voltage.

The main working principle of the AS1901C26 is that it regulates the system voltage by dynamically adjusting its output voltage as the incoming supply voltage changes. It is capable of operating over a wide voltage range, from 3.3V to 25V, and also has an adjustable voltage output range of 1.8V to 5.5V. The LDO provides high efficiency and low power consumption, making it suitable for a broad range of applications.

The AS1901C26 is a popular choice for use in a range of electronic systems including tablet PCs and netbooks, embedded systems, and industrial control products. It is ideal for systems using a large amount of power, as its dynamic stability and wide input voltage range enable it to provide a reliable supply. Its protection features provide improved system reliability, while its low power consumption ensures longer system life. As such, it is the perfect choice for applications that require a reliable power supply.

In summary, the AS1901C26 is a low-voltage regulator suitable for a wide range of applications. It has a dynamic voltage regulation control, protection features and a wide input voltage range. Its low power consumption and thermal protection make it suitable for use in battery-operated systems, and its protection features ensure improved system reliability. The AS1901C26 is an economical and effective solution for power management in a system.

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