ISL6526AIR-T

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The ISL6526AIR-T device is a high-efficiency DC/DC converter voltage regulator integrated circuit (IC) for use in multiple applications. It offers a high-frequency control, low-voltage operation, low quiescent current, and high efficiency to facilitate efficient power management and reduce overall system power consumption. The integrated switch-mode power supply features two-phase interleaving and provides up to 95.5% efficiency.

As a device belonging to the PMIC family of voltage regulators, the ISL6526AIR-T belongs to the DC/DC switching controllers sub-category. It is designed for use in applications such as servers, industrial automation, computer peripherals, and automotive. The device is housed in an SOIC-8 package, and it can be used in a wide range of operating temperatures, ranging from -40°C to 85°C.

Specifically, the IC can be used as a step-down converter, configured to produce a fixed 5V output. The device consists of two voltage cores and two power switches. Each power switch is protected by a built-in current limit and soft-start control. The ISL6526AIR-T has an input voltage range of 2.6V to 6.5V. Its output voltage range is 1.8V to 6V, with an output voltage accuracy of ±5%.

The ISL6526AIR-T has a high-frequency, multi-topology, fixed frequency mode operation, which can be configured to generate up to 1A of output current. It supports a wide variety of switch-mode power supplies, including DCM, CCM and PFM modes. The device also offers programmable under-voltage lockout (UVLO) for both automatic-mode switching and for power-on reset signaling. Additionally, the device offers overcurrent protection (OCP) and scheduled auto-restart to ensure reliable operation in the event of overcurrent conditions.

The ISL6526AIR-T offers a variety of features to simplify system design and improve the overall system performance. The built-in synchronization circuit allows multiple voltage regulators to be synchronized in operation. The device also features a low output ripple and an adjustable soft-start feature to reduce stress on the power supply system.  The integrated current balance function ensures that the output voltage remains constant and accurate across various load conditions over the entire temperature range.

The ISL6526AIR-T also features an integrated open-loop and close-loop control circuit to reduce total power consumption by eliminating overshoots and oscillations from the switching transitions. Additionally, the integrated device provides diagnostic monitoring capabilities regarding its status, such as under-voltage lockout, over-current protection, and temperature protection. In terms of electrical specifications, the device has a total gate charge of 106nC and a minimum on-time of 50ns.

In summary, the ISL6526AIR-T is a PMIC high-efficiency DC/DC switching controller IC for use in multiple applications. It is designed to provide reliable and efficient performance, with a wide range of features that enable system designers to reduce power consumption while improving overall system performance. Its high frequency, mult-topology, and integrated features make it the ideal device for multiple voltage sources and applications.

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