ADUM3070ARQZ

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The ADUM3070ARQZ is a series of integrated circuits that embody a complete range of low power, high output voltage, Non-Isolated DC/DC switching regulators. These circuits are designed to operate from input voltage sources ranging from 1.8 V to 5.5 V and provide output at 2.5 V to 5 V. They offer a wide range of features and flexibility, making them ideal for applications such as power management in portable and handheld devices.

The ADUM3070ARQZ integrates a switching regulator topology, feedback network and array of adjustable voltage and current control loops. The integrated circuitry is designed to provide high efficiency and tight voltage regulation, to ensure the maximum power output from the output stages. The integrated switching regulator topology consists of a single stage buck-converter, with two outputs for powering two different applications. The topology can be configured for multiple output needs, with a maximum output current of 8 A and a maximum output power of 40 W.

The ADUM3070ARQZ offers users a range of adjustable output voltages and current limits, which can be configured using the selector pins provided. This feature provides flexibility, allowing users to dynamically adjust the output voltage and current as the application demands. The user can also select between two operating modes - pulse-width modulation (PWM) or pulse-frequency modulation (PFM). In PWM mode, the output voltage is regulated by modulating the duty cycle of the switching regulator, whereas in PFM mode, the output voltage is regulated by modulating the switching frequency of the regulator.

The integrated circuitry also provides a comprehensive range of protection functions, designed to protect the regulator from operating over temperature, over voltage and short-circuit conditions. Additionally, the ADUM3070ARQZ provides under-voltage lockout, thermal shutdown, power saving mode and soft start function. These protection features provide a robust design and make the regulator suitable for use in harsh environments where optimum protection of the key components is required.

In summary, the ADUM3070ARQZ is a versatile and flexible DC/DC switching regulator series, designed to provide high efficiency and tight voltage regulation. It offers a range of adjustable output voltages and current limits and provides comprehensive protection functions to ensure that the system is protected from harsh environmental conditions. As such, the ADUM3070ARQZ is well suited for use in the power management of portable and handheld devices.

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