Multi-phase Pwm Controller With Linear 6-bit Dac Capable Of Precision Rds(on) Or Dcr Differential Current SensingThe ISL6564 is a Multi-phase PWM Controller which controls
Microprocessor core voltage regulation by driving up to 4
synchronous-rectified buck channels. It features a high
bandwidth control loop to provide optimal response to the load
transients. With switching frequency up to 1.5MHz per phase,
the ISL6564 based voltage Regulator requires minimum
components and PCB area in DC/DC converter application.
The ISL6564 senses current by utilizing patented techniques
to measure the voltage across the on resistance, rDS(on), of
the lower MOSFETs or DCR of the output inductor during
their conduction intervals. Current sensing provides the
needed signals for precision droop, channel-current
balancing, and overcurrent protection. By Intersil Corporation
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