Three-Phase Buck PWM Controller With Two Integrated MOSFET Drivers And One External Driver Signal

The ISL6566A three-phase PWM control IC provides a precision voltage regulation system for advanced Microprocessors The integration of Power MOSFET drivers into the controller IC marks a departure from the separate PWM Controller and driver configuration of previous multiphase product families. By reducing the number of external parts, this integration is optimized for a cost and space saving Power Management solution.
Outstanding features of this controller IC include programmable VID codes compatible with Intel VRM9, VRM10, as well as AMD Hammer Microprocessors A unity gain, Differential Amplifier is provided for remote voltage sensing, compensating for any potential difference between remote and local grounds. The output voltage CAN also be positively or negatively offset through the use of a single external resistor.
A unique feature of the ISL6566A is the combined use of both DCR and rDS(ON) current sensing. Load line voltage positioning (droop) and overcurrent protection are accomplished through continuous inductor DCR current sensing, while rDS(ON) current sensing is used for accurate channel-current balance. Using both methods of current sampling utilizes the best advantages of each technique.
Protection features of this controller IC include a set of sophisticated overvoltage, undervoltage, and overcurrent protection. Overvoltage results in the converter turning the lower MOSFETs ON to clamp the rising output voltage and protect the Microprocessor The overcurrent protection level is set through a single external resistor. Furthermore, the ISL6566A includes protection against an open circuit on the remote sensing inputs. Combined, these features provide advanced protection for the Microprocessor and power system.
By Intersil Corporation
ISL6566A 's PackagesISL6566A 's pdf datasheet
ISL6566ACRZ QFN
ISL6566ACRZ-T QFN
ISL6566AIRZ QFN
ISL6566AIRZ-T QFN
ISL6566ACR QFN
ISL6566ACR-T QFN
ISL6566ACRZA QFN
ISL6566ACRZA-T QFN
ISL6566AIR QFN
ISL6566AIR-T QFN
ISL6566AIRZA QFN
ISL6566AIRZA-T QFN




ISL6566A Pinout, Pinouts
ISL6566A pinout,Pin out
This is one package pinout of ISL6566A,If you need more pinouts please download ISL6566A's pdf datasheet.

ISL6566A Application circuits
ISL6566A circuits
This is one application circuit of ISL6566A,If you need more circuits,please download ISL6566A's pdf datasheet.


Related Electronics Part Number

Related Keywords:

ISL6566A Pb-Free ISL6566A Cross Reference ISL6566A Schematic ISL6566A Distributor
ISL6566A Application Notes ISL6566A RoHS ISL6566A Circuits ISL6566A footprint