DATA SHORT To request the full datasheet, please visit www.intersil.com/products/isl95818 ISL95818 FN8428 Rev 1.00 3-Phase PWM Controller for VR12.5 and VR12.6+ CPUs March 19, 2013 Fully compliant with Intel VR12.5 and VR12.6+ specifications, Features the ISL95818 provides a complete solution for microprocessor Serial data bus core power supply. It provides a Voltage Regulator (VR) with two integrated and one external gate drivers. The VR can be Output configurable 3-, 2- or 1-phase using two integrated configured as 3-, 2- or 1-phase, providing maximum flexibility. gate drivers The VR uses the serial control bus to communicate with the CPU Precision core voltage regulation and achieves lower cost and smaller board area. - 0.5% system accuracy over-temperature Based on Intersils Robust Ripple Regulator (R3) technology , - Enhanced load line accuracy the PWM modulator compared to traditional modulators, has Supports multiple current sensing methods faster transient settling time, variable switching frequency - Lossless inductor DCR current sensing during load transients and has improved light load efficiency - Precision resistor current sensing with its ability to automatically change switching frequency. Differential remote voltage sensing The ISL95818 has several other key features. The output supports DCR current sensing with single NTC thermistor for Programmable V voltage at start-up BOOT DCR temperature compensation or accurate resistor current Resistor programmable I and voltage transition slew CCMAX sensing. The output comes with remote voltage sense, rate programmable V voltage, programmable I , BOOT CCMAX programmable voltage transition slew rate, adjustable Adaptive body diode conduction time reduction switching frequency, overcurrent protection and Power-Good output. Applications Notebook computers Desktop computers 1.80 1.79 1.78 V = 12V IN 1.77 V = 19V IN 1.76 V = 8.5V IN 1.75 1.74 1.73 1.72 1.71 0 5 10 15 20 25 30 35 40 45 50 55 60 I (A) OUT FIGURE 1. LOAD LINE REGULATION FN8428 Rev 1.00 Page 1 of 2 March 19, 2013 V (V) OUTISL95818 Copyright Intersil Americas LLC 2013. All Rights Reserved. All trademarks and registered trademarks are the property of their respective owners. For additional products, see www.intersil.com/en/products.html Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/en/support/qualandreliability.html Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such modification does not, in Intersil s sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com FN8428 Rev 1.00 Page 2 of 2 March 19, 2013