DATA SHORT To request the full datasheet, please visit www.intersil.com/products/isl95831c ISL95831C FN7977 3+1 Voltage Regulator for IMVP-7/VR12™ CPUs Rev 0.00 January 17, 2013 Compliant with IMVP-7/VR12™, the ISL95831C provides a Features complete solution for microprocessor and graphic processor core power supply. It provides two Voltage Regulators (VRs) • Serial Data Bus with three integrated gate drivers. The first VR can be • Dual Outputs: configured as 3-, 2- or 1-phase VR while the second output is - Configurable 3-, 2- or 1-phase for the 1st Output using 2 1-phase VR, providing maximum flexibility. The two VRs share integrated Gate Drivers the serial control bus to communicate with the CPU and achieve - 1-phase for the 2nd Output using an Integrated Gate lower cost and smaller board area compared with the two-chip Driver approach. • 0.5% System Accuracy Over-Temperature Based on Intersil’s Robust Ripple Regulator (R3) technology™, • Supports Multiple Current Sensing Methods the PWM modulator compared to traditional modulators, has 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 it’s ability to automatically change switching frequency. • Differential Remote Voltage Sensing The ISL95831C has several other key features. Both outputs • Programmable VBOOT Voltage at Start-up support DCR current sensing with single NTC thermistor for DCR temperature compensation or accurate resistor current • Resistor Programmable IMAX, TMAX for Both Outputs sensing. Both outputs come with remote voltage sense, • Adaptive Body Diode Conduction Time Reduction programmable VBOOT voltage, programmable IMAX, TMAX, Applications adjustable switching frequency, OC protection and separate Power-Good. • IMVP-7/VR12 Compliant Computers 0.91 VIN = 19V 0.90 0.89 0.88 0.87 V) (T 0.86 U 0.85 O V 0.84 0.83 VIN = 12V 0.82 0.81 VIN = 8V 0.80 0 6 12 18 24 30 36 42 48 54 60 66 IOUT (A) FIGURE 1. LOAD LINE REGULATION FN7977 Rev 0.00 Page 1 of 2 January 17, 2013

ISL95831C © 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 FN7977 Rev 0.00 Page 2 of 2 January 17, 2013