AN8025M

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AN8025M PMIC power management integrated circuit (PMIC) is a highly integrated power management solution for a wide range of applications. This linear regulator integrates four high performance regulators to provide current, voltage, and temperature protection for the regulated load, reducing any need for an external power supply. The device is highly reliable and provides a low cost alternative to other power management solutions.

Overview of AN8025M

The AN8025M PMIC power management integrated circuit (PMIC) is a highly integrated power management solution for a wide range of applications. This linear regulator integrates four high performance regulators to provide current, voltage, and temperature protection for the regulated load, reducing any need for an external power supply. The device is highly reliable and provides a low cost alternative to other power management solutions. The AN8025M is a 3 A, 30 V fixed output, step up, step down, and battery charger regulator. It contains four independent regulators to provide the required current, voltage, and temperature protection for the regulated load. Its input voltage range is from 3.1 V to 28 V and its output voltage range is from 0.3 V to 30 V.

AN8025M Features

The AN8025M PMIC power management integrated circuit (PMIC) is a highly integrated power management solution for a wide range of applications. It features a wide input voltage range of 3.1V to 28V, adjustable output voltage range of 0.3V to 30V, high-efficiency step up and step down regulator with up to 94.5% efficiency, adjustable soft start time, adjustable input under voltage protection, output over voltage protection, over temperature protection, short circuit protection, overload protection and low quiescent current. In addition, it offers low noise, low ripple transient response and fast switching times. The device also features over-temperature protection and has a shutdown output that can be controlled by PMIC operation mode.

AN8025M Applications

The AN8025M PMIC power management integrated circuit (PMIC) is highly suitable for a wide range of applications that require high accuracy and small size such as portable consumer electronics like camera, camcorder, PDAs, networking equipment and base station systems. The device also finds applications in automotive applications such as electrical systems, electric motors, heating, ventilation and air conditioning (HVAC) systems and LED lighting applications. It is also suitable for industrial and medical appliance applications.

AN8025M Working Principle

The AN8025M PMIC power management integrated circuit (PMIC) operates on the principle of voltage regulation, in which the output voltage is kept within a constant range. The output voltage of the device is determined by two main parts: the input voltage and the feedback current. The feedback current is the key element in voltage regulation. It is used to compare the output voltage to the regulation limit and adjust the output current accordingly. The higher the input voltage, the more the current required to reach a regulated output voltage. The lower the input voltage, the less the current necessary to reach a regulated output voltage.

The device combines a switching regulator, low dropout (LDO) regulator, adjustable linear regulator and battery charger regulator in one monolithic integrated circuit (IC). The switching regulator is used to step up or step down the input voltage to the desired output voltage. The LDO regulator is then used to create an additional output stage with the desired output voltage. Finally, the adjustable linear regulator provides additional voltage regulation and current maintanance features. The battery charger regulator is used to control the charging of a battery, ensuring that it is kept within certain voltage/current limits.

The AN8025M also includes integrated voltage and current protection features, such as over voltage, over current and over temperature protection. These features are useful in applications where precise voltage and current regulation is required, such as portable and low power applications. The device is also capable of providing an accurate power shut-down mechanism and energy saving modes, making it suitable for applications with stringent power management requirements.

Conclusion

The AN8025M PMIC power management integrated circuit (PMIC) is a reliable and highly integrated solution for a wide range of applications requiring low power and precise current, voltage and temperature protection. The device integrates four regulators in one IC, providing step up, step down and battery charger regulators, as well as over voltage, over current and over temperature protection. The high efficiency of the device makes it ideal for a variety of applications, including portable and low power applications, automotive systems, industrial and medical appliances, and LED lighting systems.

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