Controller IC Chip - MOSFET ISL6218CVZ ISL6218 chip for laptop - Integrated Laptop Chip (Code 1-CHIP0495)

Controller IC Chip - MOSFET ISL6218CVZ ISL6218 chip for laptop- Integrated portable calculator chip(SKU.1-CHIP0495)

Precision Single-Phase Buck PWM Controller for Intel Mobile Voltage Positioning IMVP-IVâ„¢and IMVP-IV+â„¢

The ISL6218 Single-Phase Buck PWM control IC, with integrated half bridge gate driver, provides a precision voltage regulation system for advanced Pentium-M microprocessors in notebook computers. This control IC also features both input voltage feed-forward and average current mode control for excellent dynamic response, “Loss-less” current sensing using MOSFET rDS(ON), and user selectable switching frequencies from 250kHz to 500kHz per phase.The ISL6218 includes a 6-bit digital-to-analog converter (DAC) that dynamically adjusts the CORE PWM output voltage from 0.700V to 1.708V in 16mV steps, and conforms to the Intel IMVP-IV™ mobile VID specification. The ISL6218 also has logic inputs to select Active, Deep Sleep and Deeper Sleep modes of operation. A precision reference, remote sensing and proprietary architecture with integrated processor-mode compensated “Droop” provides excellent static and dynamic CORE voltage regulation.Another feature of the ISL6218 IC controller is the internal PGOOD delay circuit that holds the PGOOD pin low for3ms to 12ms after the VCCP and VCC_MCH regulators are within regulation. This PGOOD signal is masked during VID changes. Output overvoltage and undervoltage are monitored and result in the converter latching off and PGOOD signal being held low. The overvoltage and undervoltage thresholds are 112% and 84% of the VID, Deep or Deeper Sleep setpoint. Overcurrent protection features a 32 cycle overcurrent shutdown. PGOOD, Overvoltage, Undervoltage and Overcurrent provide monitoring and protection for the microprocessor and power system. The ISL6218 IC is available in a 38 Ld TSSOP and 40 Ld QFN package.

• IMVP-IV™ Compliant CORE Regulator• Single-Phase Power Conversion• “Loss-less” Current Sensing for Improved Efficiency and Reduced Board Area- Optional Discrete Precision Current Sense Resistor• Internal Gate Drive and Boot-Strap Diode• Precision CORE Voltage Regulation- 0.8% System Accuracy Over-temperature• 6-Bit Microprocessor Voltage Identification Input• Programmable “Droop” and CORE Voltage Slew Rate to Comply with IMVP-IV™ Specification• Discontinuous Mode Of Operation for Increased Light Load Efficiency in Deep and Deeper Sleep Mode• Direct Interface with System Logic (STP_CPU and DPRSLPVR) for Deep and Deeper Sleep Modes of Operation• Easily Programmable Voltage Setpoints for Initial “Boot”, Deep Sleep and Deeper Sleep Modes• Excellent Dynamic Response- Combined Voltage Feed-Forward and Average Current Mode Control• Overvoltage, Undervoltage and Overcurrent Protection• Power-good Output with Internal Blanking During VID and Mode Changes• User Programmable Switching Frequency of 250kHz to 500kHz• Pb-Free Plus Anneal Available (RoHS Compliant)

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