ISL6551ABZ

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ISL6551ABZ is a DC/DC switching controller from Intersil Corporation. It is designed to provide efficient power conversion and regulation from a single input voltage source to a variety of output voltages supporting both single and dual output configurations. This device is suitable for a wide range of applications, such as battery-powered portables, consumer electronics and communications infrastructure systems.

The ISL6551ABZ features a 3-phase switching controller with integrated forced-PWM control that provides a minimum on-time of 200ns. The device also integrates an integrated controller, synchronous rectifier gate drivers, an adjustable pin-programmable oscillator and a wide range of other integrated circuits required for modern digital control. These features provide excellent current-mode control with a wide range of programmable operating parameters such as over-current protection.

The ISL6551ABZ is a comprehensive solution for DC/DC conversion for a variety of applications, ranging from low-power to high-power designs. It provides a high level of efficiency and flexibility and is suitable for a wide range of input voltages and output configurations. The device also provides an adjustable current-mode controller with a number of integrated functions and a wide range of adjustable parameters.

The ISL6551ABZ integrates an adjustable current-mode control with an externally adjustable over-voltage limitation voltage. This feature limits the output voltage to a maximum value and prevents input current circulating through the output MOSFET. This ensures safe operation even in cases of input over-voltage. The device also incorporates an adjustable start-up voltage, adjustable under-voltage lockout, monitoring loop, and a power-saving auto-restart mode.

The ISL6551ABZ features a wide range of protection features, including programmable over-voltage protection and over-current protection. This device is available in both 9-pin and 10-pin packages. The 9-pin package is ultra-small and is ideal for space- sensitive applications. The ISL6551ABZ is designed for high-precision regulation of the output current and voltage and offers excellent stability over a wide operating temperature range, from -40°C to +125°C.

The ISL6551ABZ is a highly integrated and versatile DC/DC switching controller suitable for a wide range of applications. With its flexible configuration and excellent efficiency, the ISL6551ABZ is ideal for applications such as battery-powered portable systems, automotive, consumer electronics, white goods, networking and communications systems.

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