AS7620B-BQFT

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The AS7620B-BQFT is a highly integrated monolithic step-up converter that is used for providing isolated power from a single inductor. It is a member of a family of step-up switching regulators from Alpha and Omega Semiconductor. This family of regulators is part of PMIC (Power Management IC) voltage regulators and DC-DC switching regulators.

The AS7620B-BQFT is a highly efficient, low quiescent current monolithic device. It consists of an adjustable regulator, a control PWM, a power switch, a regulator start-up circuit, and an auxiliary switch. This device is designed to provide up to 2A of output current over an input voltage range of 2.6 V to 5.5 V with an adjustable output voltage range of 2.6 V to 24 V.

The main feature of this monolithic device is its ability to drive inductive loads. It functions as a synchronous buck-boost regulator, allowing the user to boost the voltage with a single inductor while maintaining a constant input voltage rather than requiring multiple inductors. This makes it ideal for applications such as battery-powered isolation and power, voltage conversion, and synchronous rectification.

The AS7620B-BQFT is highly efficient, making it ideal for power-sensitive applications. It operates with very low quiescent current (less than 400μA for typical operation) and offers 0.5% voltage accuracy at light loads. It also provides excellent output voltage ripple (less than 5mV), high efficiency, and low EMI.

This device\'s working principle is based on a dual loop average current mode control. It includes such features as soft-start, current limit, cycle-by-cycle current limit, overvoltage protection, operational frequency up to 1MHz, external compensation, and logic level shutdown. This regulator is designed to be relatively easy to design-in, with a small number of external components. In addition, it offers a comprehensive software package, including a comprehensive command set, allowing users to easily set and adjust the parameters of the IC.

The AS7620B-BQFT is designed for a variety of applications, ranging from battery charging to motor control systems and LCD displays. It is well suited to applications in automotive, industrial, telecom, LED lighting, and consumer markets. The device is available in a space-saving 5mm x 5mm QFN package.

In conclusion, the AS7620B-BQFT is a highly integrated monolithic device from Alpha and Omega Semiconductor. It is part of the PMIC Voltage Regulators and DC-DC switching regulators family and is a highly efficient and low quiescent current monolithic device. This device is ideal for applications such as battery-powered isolation and power, voltage conversion, and synchronous rectification. It also provides excellent output voltage ripple, high efficiency, and low EMI. Additionally, this device provides a comprehensive software package, allowing users to easily set and adjust the parameters of the IC.

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