Overview: ® ISL6592
Data Sheet August 5, 2005 FN9163.1 6-Phase Digital Multiphase Controller
The ISL6592 digital multiphase controller provides core power for today's high current microprocessors by driving up to six synchronous-rectified buck-converter channels in parallel. Interleaved timing of the channels results in a higher ripple frequency, reducing input and output ripple. With up to six phases, each capable of up to 1.5MHz operation, the ISL6592 can be used to build DC/DC converters that provide up to 200A with excellent efficiency, low ripple, and the lowest component count. The ISL6592 utilizes digital technology to implement all control functions, providing the ultimate in flexibility and stability. The ISL6592 incorporates an industry standard I2C serial interface for control and monitoring. Through the serial interface, the power supply designer can quickly optimize designs and monitor parameters. The interface allows the ISL6592 to provide digitized information for real time system monitoring and control. The ISL6592 provides superior loadline accuracy through internal calibration that measures and corrects current sense error sources upon start-up. The ISL6592 has programmable current sense temperature compensation that allows the designer to tailor the response for best loadline accuracy over temperature. Superior loadline accuracy reduces component count and solution cost. To further reduce component count the ISL6592 incorporates patented Active Transient Response (ATR) technology, allowing the fastest response to transient events for reduced output capacitance. The flexibility of the ISL6592 allows the power supply designer to implement a wide range of solutions. When used with industry standard power train components, ISL6592 provides the highest performance with lowest component count and cost. When area is at a premium, ISL6592 can be used with the ISL6597 integrated power stage to implement the industry's highest density power solutions.
