ADP1875ARQZ-0.3-R7

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PMIC, or power management integrated circuits, are complex electronic components that are designed to regulate, control, and convert electric power for different application areas. The ADP1875ARQZ-0.3-R7 is a voltage regulator module from a product part of the DC DC switching controllers of PMIC. This module allows the designer to easily create a low cost, low power, and high performance DC-DC switching converter for applications such as portable electronics, notebooks, and other consumer applications.

Overview

The ADP1875ARQZ-0.3-R7 is a switching regulator controller that features integrated circuits with a wide input range of up to 18V. It is highly efficient, and provides superior performance in both step-up and step-down operations. It also offers excellent line and load regulation at low output voltages. This regulator module is well suited for a wide range of applications such as cellular phones, digital cameras, battery chargers and other various consumer electronics.

Features

The ADP1875ARQZ-0.3-R7 is equipped with a number of features that enable designers to implement a robust and reliable buck-boost topology. These features include:

• Wide input voltage range of 4.5V to 18V
• High switching frequency of up to 500kHz
• Synchronous rectification for optimal efficiency
• Integrated logic voltage regulator
• Adjustable current limit
• Fixed or adjustable frequency operation
• Soft start and on/off control
• Programmable overcurrent protection
• Undervoltage lockout (UVLO) to protect circuitry when input is too low
• Thermal shutdown for over temperature protection

Application Fields

The ADP1875ARQZ-0.3-R7 is an ideal solution for a wide range of low voltage applications. Its flexible features and robust design make it suitable for portable devices, notebook computers, digital cameras, cellular phones, and other consumer applications that require a low cost, low power, and high performance switching regulator.

It is also appropriate for industrial applications such as LED lighting, one-wire interfaces, SMPS, battery monitoring, and power conversion. Moreover, its thermal shut-down and over-current protection make it suitable for automotive, Medical, and Telecom applications.

Working Principle

The ADP1875ARQZ-0.3-R7 is a switching regulator controller that implements a typical buck-boost topology. It works by regulating the output voltage to the specified set-point, regardless of the load or input voltage. The input voltage is applied to the input of the converter, and the output voltage is regulated by a feedback loop that uses a voltage divider. A control circuit is responsible for driving the power switch to regulate the output voltage, and a voltage regulator maintains the control circuit\'s voltage level at a constant level. The frequency of the converter is set by the user, and the switching frequency can be adjusted in order to optimize the converter\'s efficiency.

The ADP1875ARQZ-0.3-R7 also features integrated logic voltage regulation and synchonous rectification, allowing the designer to unlock the full potential of the buck-boost topology. This results in an optimized conversion efficiency and improved line and load regulation. To provide additional safety precautions, the module also includes an over-current and UVLO protection, as well as an adjustable current limit, soft-start, and thermal shutdown.

Conclusion

The ADP1875ARQZ-0.3-R7 is an efficient, high performance DC-DC switching regulator from PMIC\'s DC DC switching controllers. With its wide input voltage range and high switching frequency, it is ideal for applications that require low power and excellent line and load regulation. It also includes various safety features such as over-current and UVLO protection, as well as thermal shut-down, making it suitable for numerous consumer, industrial, and automotive applications.

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