ISL6440IAZ-T

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The ISL6440IAZ is a 3A synchronous buck controller microcontroller, specifically designed to provide an ideal solution in voltage regulator and DC/DC switching controllers. It conforms to the 4.5V to 17V input voltage range, thereby providing flexibility and ease in using the device. The device also supports up to 6A (3A) of peak current at peak current-mode control, allowing it to be employed in a wide range of applications. The output voltage range is programmable, allowing the ISL6440IAZ to be used for applications such as distributed power systems, battery management systems and industrial vehicles.

The ISL6440IAZ features a low profile integrated design, which provides low external component count and improved efficiency. With an on-chip programmable current-mode control loop, the ISL6440IAZ is capable of delivering an accurate current regulation over a wide range of voltages and load conditions. Moreover, the device also features a VOUT trimming circuit for superior voltage accuracy, and a selection of integrated safety features for enhanced safety and reliability.

One of the key features of ISL6440IAZ is its programmable output, allowing the device to operate in either fixed frequency mode or pulse width modulation (PWM) mode. The switching frequency is adjustable and the PWM duty cycle is programmable, thereby allowing it to achieve the desired output voltage range. Furthermore, the ISL6440IAZ has an inherent loop compensation feature, allowing the device to be operated without external loop compensation components.

The ISL6440IAZ is also equipped with an integrated boot-strapping circuitry, allowing it to achieve an output voltage which is higher than its input voltage. This feature allows the device to be employed in applications where the input voltage is limited, yet higher output voltages must be obtained. Furthermore, the integrated under-voltage lockout (UVLO) circuitry prevents the device from operating until the correct operating voltage is established, thus protecting the VOUT pin from instabilities and other potential damages.

The ISL6440IAZ also features an integrated soft-start motor which allows for a safe and smooth turn-on of the output voltage. Additionally, the on-chip gate drive circuit provides a logic-level gate drive required for both the high-side and low-side PWM switches. This provides the ISL6440IAZ with a efficient and quick response wehen switching at the specified frequencies.

The ISL6440IAZ is an ideal solution for applications such as power supplies, distributed DC/DC power systems, battery management systems, industrial vehicles, motor-controls, and so on. With its integrated design and multiple features, it provides the users with a highly reliable and efficient voltage regulator solution. The device can also be used as a DC/DC controller, switching power supplies, and so on.

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