ISL95839

ISL95839 NOc1No-T8nO8Rta8REc-ICEtNCOoTuOMErMRMTSMEeIcNELhNDonDEricDEwaDwFl SORwuRE.ipnPNptLeoEArrWstCiClED.ceMEonESmteNIG/rtTsNactS Dual 3+1 PWM Controller with Current Monitor for IMVP-7/VR12™ CPUs DATASHEET FN8315 Rev 0.00 May 9, 2013 The ISL95839 Pulse Width Modulation (PWM) controller IC provides a complete solution for IMVP-7/VR12™ compliant microprocessor and graphic processor core power supplies. It provides the control and protection for two Voltage Regulators (VRs). The first VR, typical for Vcore, incorporates 2 integrated drivers and can operate in 3-, 2- or 1-phase configurations. The second VR, typical for Graphics, incorporates 1 integrated driver. The two VRs share a serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with the two-chip approach. Both VRs utilize Intersil’s Robust Ripple Regulator R3 Technology™. The R3 modulator has numerous advantages compared to traditional modulators, including faster trans...