The ISL6219 provides core-voltage regulation by driving up
to three interleaved synchronous-rectified buck-converter
channels in parallel. Intersil multi-phase controllers together
with ISL6207 gate drivers form the basis for the most reliable
power-supply solutions available to power the latest
industry-leading microprocessors. Multi-phase buckconverter
architecture uses interleaved timing to multiply
ripple frequency and reduce input and output ripple currents.
Lower ripple results in lower total component cost, reduced
dissipation, and smaller implementation area. Preconfigured
for 3-phase operation, the ISL6219 also offers 2-
phase operation. Simply connect the unused PWM pin to
+5V. The channel switching frequency is adjustable in the
range of 100kHz to 1.5MHz giving the designer the ultimate
flexibility in managing the balance between high-speed
response and good thermal management.
New features on the ISL6219 include Dynamic-VID?
technology allowing seamless on-the-fly VID changes with
no need for any additional external components. When the
ISL6219 receives a new VID code, it incrementally steps the
output voltage to the new level. Dynamic VID? changes are
fast and reliable with no output voltage overshoot or
undershoot.