Controller IC Chip - MOSFET ISL6364 CRZ chip for laptop - Integrated Laptop Chip (Code 1-CHIP0523)

Controller IC Chip - MOSFET ISL6364 CRZ chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0523)

Dual 4-Phase + 1-Phase PWM Controller for VR12/IMVP7 Applications

The ISL6364 is a dual PWM controller; its 4-phase PWMs control the microprocessor core or the memory voltage regulator, while its single-phase PWM controls the peripheral voltage regulator for graphics, system agent, or processor I/O.The ISL6364 utilizes Intersil’s proprietary Enhanced Active Pulse Positioning (EAPP) modulation scheme to achieve the extremely fast transient response with fewer output capacitors. The ISL6364 is designed to be compliant to Intel VR12/IMVP7 specifications. It accurately monitors the load current via the IMON pin and reports this information via the IOUT register to the microprocessor, which sends a PSI# signal to the controller at low power mode via SVID bus. The controller enters 1- or 2-phase operation in low power mode (PSI1); in the ultra low power mode (PSI2,3), it can further drop the number of phases and then enable the diode emulation of the operational phase. In low power modes, the magnetic core and switching losses are significantly reduced, yielding high efficiency at light load. After the PSI# signal is de-asserted, the dropped phase(s) are added back to sustain heavy load transient response and efficiency.Today’s microprocessors require a tightly regulated output voltage position versus load current (droop). The ISL6364 senses the output current continuously by measuring the voltage across the dedicated current sense resistor or the DCR of the output inductor. The sensed current flows out of the FB pin to develop the precision voltage drop across the feedback resistor for droop control. Current sensing circuits also provide the needed signals for channel-current balancing, average overcurrent protection and individual phase current limiting. The TM and TMS pins are to sense an NTC thermistor’s temperature, which is internally digitized for thermal monitoring and for integrated thermal compensation of the current sense elements of the respective regulator. The ISL6364 features remote voltage sensing and completely eliminates any potential difference between remote and local grounds. This improves regulation and protection accuracy. The threshold-sensitive enable input is available to accurately coordinate the start-up of the ISL6364 with other voltage rails.

Intel VR12/IMVP7 Compliant- SerialVID with Programmable IMAX, TMAX, BOOT, ADDRESS OFFSET Registers• Intersil’s Proprietary Enhanced Active Pulse Positioning (EAPP) Modulation Scheme, Patented- Voltage Feed-forward and Ramp Adjustable Options- High Frequency and PSI Compensation Options- Variable Frequency Control During Load Transients to Reduce Beat Frequency Oscillation- Linear Control with Evenly Distributed PWM Pulses for Better Phase Current Balance During Load Transients•Dual Outputs- Output 1 (VR0): 1 to 4-Phase, Coupled Inductor Compatibility, for Core or Memory- Output 2 (VR1): Single Phase for Graphics, System Agent, or Processor I/O- Differential Remote Voltage Sensing- ±0.5% Closed-loop System Accuracy Over Load, Line and Temperature- Phase Doubler Compatibility (NOT Phase Dropping)• Proprietary Active Phase Adding and Dropping with Diode Emulation Scheme For Enhanced Light Load Efficiency•Programmable Slew Rate of Fast Dynamic VID for VR0• Dynamic VID Compensation (DVS) for VR1 at No Droop• Droop and Diode Emulation Options• Programmable 1 or 2-Phase Operation in PSI1/2/3 Mode• Programmable Standard or Coupled-Inductor Operation• Precision Resistoror DCR Differential Current Sensing- Integrated Programmable Current Sense Resistors- Integrated Thermal Compensation- Accurate Load-Line (Droop) Programming- Accurate Channel-Current Balancing- Accurate Current Monitoring• Average Overcurrent Protection and Channel Current Limit with Internal Current Comparators• Precision Overcurrent Protection on IMON & IMONS Pins• Independent Oscillators, up to 1MHz Per Phase, for Cost, Efficiency, and Performance Optimization• Dual Thermal Monitoring and Thermal Compensation• Start-up Into Pre-Charged Load• Pb-Free (RoHS Compliant)

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