DATASHEET
ISL6217A FN9107
Rev 3.00
June 30, 2005 Precision Multi-Phase Buck PWM Controller for Intel, Mobile Voltage Positioning
IMVP-IVв„ў and IMVP-IV+в„ў
The ISL6217A Multi-Phase Buck PWM controller IC, with
integrated half bridge gate drivers, provides a precision
voltage regulation system for advanced Pentium IV
microprocessors in notebook computers. Two-phase
operation eases the thermal management issues and load
demand of Intel’s latest high performance processors. 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 1MHz per phase. Features The ISL6217A 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-IVв„ў and IMVP-IV+в„ў mobile VID
specification. The ISL6217A 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 …
