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Multiphase Power Controller Oct 7, 2003 12:00 PM, Edited by PETech Staff The Endura™ ISL6244 from Intersil Corp. is a new multiphase synchronous-buck PWM controller. This precision controller has a 5-bit voltage identification (VID) input optimized for new AMD Athlon™ 64 processors used in notebook PCs. When combined with Intersil’s MOSFET driver ICs, the ISL6244 provides the industry’s most precise voltage regulation at ±1%. The 32-pad quad flat no-lead (QFN) package, also available lead-free, saves space and offers enhanced thermal efficiency. Voltage and current feedback are actively monitored to detect fault conditions. A power good (PGOOD) output indicates that the controller is operating properly and the output voltage is within a set window, as determined by undervoltage and overvoltage comparators. The controller provides overcurrent protection by monitoring individual channel current and will shut down if any of the channel currents exceeds a reference current. The ISL6244 also allows selection of channel switching frequency in the range of 80 kHz to 1 MHz.
For more information, visit www.intersil.com.
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April 1, 2012
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