ISL6522IVZS2698

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ISL6522IVZS2698 is a switching controller for DC-DC power supplies. This device is offered by Intersil, which is a leader in the field of quality power management integrated circuits and is capable of high-efficiency switching design. The controller provides a simple way of achieving low component count and compact, reliable power supplies.

The ISL6522IVZS2698 controller is intended for fixed frequency, current mode operation with either external transistors or an internal P-channel MOSFET. It is designed to provide excellent regulation over a wide range of load, line, and temperature conditions, and excellent light-load efficiencies. Its wide input and output voltage ranges enable it to be used in a variety of applications, from low-noise DC-DC converters to battery chargers.

Working Principle:
The basic operation of the ISL6522IVZS2698 controller is to sense the voltage on the output and compare it to an inner set-point voltage. When the output voltage drops below the set-point voltage, the controller will switch the FET on and draw current to the output; thus supplying energy to return the output voltage to the set-point voltage. Conversely, when the output voltage is above the set-point voltage, the controller will switch off the FET to reduce the load on the output and reduce the output voltage.

Application Field:
The ISL6522IVZS2698 controller is suitable for a wide variety of applications, such as portable devices (cell phones, PDAs, MP3 players, etc.), power adapters, Notebook PCs, and automotive applications. Its wide input and output voltage ranges also make it suitable for powering FPGAs, CPLDs, and other applications that require regulated, clean power.

The ISL6522IVZS2698 can be used in synchronous and nonsynchronous Buck, Boost and Buck-Boost configurations, allowing it to be used with a variety of output voltages. The ISL6522IVZS2698 has a low quiescent current of only 28µA, and a switching frequency of up to 600kHz, making it suitable for high-efficiency applications.

The ISL6522IVZS2698 has an integrated over-temperature and over-current protection, which makes it an ideal choice for high-reliability applications. The device also has protection against a variety of fault conditions, such as input under-voltage, output over-voltage, and over-current conditions.

In summary, the ISL6522IVZS2698 is a versatile switching controller for DC-DC applications. It features a wide input and output voltage range and can operate with a variety of output voltages. It offers excellent regulation, light-load efficiency and reliable protection against a variety of fault conditions. Thus, it is suitable for powering a wide range of applications, from low-noise DC-DC converters to battery chargers.

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