ISL6218

DATASHEET ISL6218 Precision Single-Phase Buck PWM Controller for Intel Mobile Voltage Positioning IMVP-IV™ and IMVP-IV+™ FN9101 Rev 6.00 August 6, 2007 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 i...