MAX16984RATI/V+

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The MAX16984RATI/V+ is a device from the class of PMIC - Voltage Regulators - Special Purpose. It is designed as an asynchronous buck converter with a linear regulator parallel to it. The device operates from 6 V to 40 V input, and can deliver an output voltage down to 0.85 V with a maximum output current of up to 2.5 A. It is qualified for operation up to an ambient temperature of 105°C junction temperature and has an Adjustable Output Voltage (AOV) feature which allows the user to adjust the output voltage through terminal programming or through I2C. The converter is a synchronous buck-boost-forward converter with current-mode control.

The MAX16984RATI/V+ device has a circuit that provides three main functions necessary for voltage regulation: Overload protection, current limit, and a soft start. The overload protection circuit consists of an adjustable overload circuit where the overload can be current or power limited from the input voltage. The current limit circuit consists of a voltage comparator and a shunt regulator with a reference voltage. The shunt regulator controls the output current to the load. The soft start circuit is an RC network that ramps up the output voltage slowly when the device is first enabled.

The typical application field of the MAX16984RATI/V+ is providing a regulated voltage at the output. The device can be used in applications such as electric power steering system, automotive cameras, 12V and 24V automotive modules, and point-of-load regulation. The device can also be used in applications where the output voltage needs to be regulated such as battery charging, microprocessor and microcontroller core power regulation, and power supplies for communications and consumer devices.

The MAX16984RATI/V+ device is capable of producing a wide range of output voltages with a single device. It is a highly integrated DC-DC buck regulator with a built-in linear regulator. It can provide both isolating and non-isolating buck and boost modes with a wide input and output voltage range. It provides a wide adaptive range on its overload protection, current limit and soft-start circuit. The device also features a fast transient response time and excellent power supply rejection ratio.

The working principle of the MAX16984RATI/V+ is that it utilizes a feedback loop to control the output voltage. When the output voltage deviates from the desired voltage, the error signal is used to adjust the output current. The device uses a control loop to maintain the desired output voltage by adjusting the current through a control element such as a sense resistor or a MOSFET. The device also features current and voltage regulation which ensures the stability of the load and keeps the output voltage from dropping due to the load current. In addition, the device has an overload protection circuit which protects the output voltage from over current and over voltage.

In summary, the MAX16984RATI/V+ is a very useful device from the PMIC - Voltage Regulators - Special Purpose. It is useful for a wide range of applications from electric power steering systems to battery charging, and has a wide adaptive range on its overload protection, current limit and soft-start circuit. The device utilizes a feedback loop to control the output voltage and ensures current and voltage regulation stability and overload protection.

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