ISL6560CB-T

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ISL6560CB-T Application Field and Working Principle

ISL6560CB-T is a DC-DC switching controller for PMIC – Voltage Regulators – DC DC Switching Controllers. It is designed to improve system efficiency, reduce parts count, and reduce power and cost. The ISL6560CB-T can be used in a wide range of applications, including computer architectures, medical systems, communications systems, instrumentation, and industrial automation.

Features

The key features of ISL6560CB-T include: wide operating temperature range, integrated synchronization, cycle-by-cycle current limit, short circuit protection, overvoltage protection and integrated FET driver. It is suitable for a variety of synchronous buck converter topologies and architectures, such as two-phase interleaved, three-phase, multiple-output and micro-fractional configurations.

Applications

ISL6560CB-T can be used in a wide range of applications, such as computer architectures, medical systems, communications systems, instrumentation and industrial automation. It can also be used to control dc-dc buck converters for alternative energy systems, telecom power supplies, and automotive applications.

Working Principle

ISL6560CB-T is a DC-DC buck switching controller that uses Pulse Width Modulation or PWM to switch the power MOSFET that is connected between the input and output. When two MOSFETs are connected in a bridge circuit and driven by a pair of square pulses out of phase, the voltage at the output is controlled by the pulse widths. A variable input voltage is applied across the MOSFETs, and the output voltage is determined by the voltage drops across two resistors, called the reference divider, connected across the MOSFETs. In practice, a hysteretic comparator is added to the reference divider to improve the stability of the circuit.

The ISL6560CB-T is a synchronous buck controller that includes a high-speed oscillator and a current sensing circuit. It can be used to control a wide range of switching frequencies and currents in order to obtain high efficiency and no-load regulation. It has an under-voltage protection circuit to protect the system from excessive inrush currents.

Conclusion

The ISL6560CB-T is an excellent DC-DC switching controller for PMIC – Voltage Regulators – DC DC Switching Controllers. It provides good performance in a wide range of applications, and has many features that make it well-suited for use in synchronous buck converter topologies and architectures. The efficient current sensing and comparator circuit, protection features, and hysteretic comparator ensure reliable and efficient operation of the power supply.

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