INTERSIL ISL95832 overview
Intersil ISL95832 Multiphase PWM Regulator for IMVP-7 Mobile CPUs Fully compliant with IMVP-7TM, the ISL95832 provides a complete solution for microprocessor an...
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Manufactured byINTERSIL
Product groupMultiphase PWM Regulators
DescriptionIntersil ISL95832 Multiphase PWM Regulator for IMVP-7 Mobile CPUs
OverviewFully compliant with IMVP-7TM, the ISL95832 provides a complete solution for microprocessor and graphic processor core power supply. It provides two Voltage Regulators (VRs) with three integrated gate drivers. The first VR can be configured as 3-, 2- or 1-phase VR while the second output can be configured as 2- or 1-phase VR, providing maximum flexibility. The two VRs share the serial control bus to communicate with the CPU and achieve lower cost and smaller board area compared with two-chip approach.Based on Intersil’s Robust Ripple Regulator (R3) technologyTM, the PWM modulator compared to traditional modulators, has faster transient settling time, variable switching frequency during load transients and has improved light load efficiency with it’s ability to automatically change switching frequency.The ISL95832 has several other key features. Both outputs support DCR current sensing with single NTC thermister for DCR temperature compensation or accurrate resistor current sensing. Both outputs come with remote voltage sense, programmable Vboot voltage, programmable Imax, Tmax, adjustable switching frequency, OC protection and power good.The ISL95831 can be considered ISL95832 with VR2 dedicated to 1-phase configuration.
Key Features• Serial Data Bus• Dual Outputs:- Configurable 3-, 2- or 1-phase for the 1st output using 2 integrated gate drivers- Configurable 2- or 1-phase for the 2nd output using an integrated gate driver• Precision Core Voltage Regulation- 0.5% System Accuracy Over-Temperature- Enhanced Load Line Accuracy• Supports Multiple Current Sensing Methods- Lossless Inductor DCR Current Sensing- Precision Resistor Current Sensing• Differential Remote Voltage Sensing• Programmable Vboot Voltage at Startup• Resistor Programmable Imax, Tmax for Both Outputs• Adaptive Body Diode Conduction Time Reduction
Typical Applications• Notebook Computers
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Multiphase PWM Regulators
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