Device Information
 
 
ISL6565A Printer Friendly Version
 
Multiphase PWM Controller with Precision rDS(ON) or DCR Current Sensing for VR10.X Application
 
Datasheets,
Related Docs
& Simulations		DescriptionKey
Features		Parametric
Data		Related
Devices
 
 
Ordering Information
 iBuy direct from Intersil  iBuy direct - out of stock  Request samples
 Check distributor inventory Green/Pb(Lead free) Device  Available in RoHS/Pb-Free  
Part No. Design-In
Status		 Temp. Package MSL Price
US $		 PB Free
ISL6565ACBZ Active Comm 28 Ld SOIC 3 2.02 PB Free Buy Direct Disti-Buy  
ISL6565ACBZ-T Active Comm 28 Ld SOIC T+R 3 2.02 PB Free Out of stock Disti-Buy  
ISL6565ACRZ Active Comm 28 Ld QFN 3 2.07 PB Free Disti-Buy  
ISL6565ACRZ-T Active Comm 28 Ld QFN T+R 3 2.07 PB Free Disti-Buy  
ISL6565ACVZ Active Comm 28 Ld TSSOP 3 2.07 PB Free Disti-Buy  
ISL6565ACVZ-T Active Comm 28 Ld TSSOP T+R 3 2.07 PB Free Buy Direct Disti-Buy  
ISL6565ACB InActive Comm 28 Ld SOIC 1 N/A      
ISL6565ACB-T InActive Comm 28 Ld SOIC T+R 1 N/A      
ISL6565ACR InActive Comm 28 Ld QFN 1 N/A      
ISL6565ACR-T InActive Comm 28 Ld QFN T+R 1 N/A      
ISL6565ACV InActive Comm 28 Ld TSSOP 1 N/A      
ISL6565ACV-T InActive Comm 28 Ld TSSOP T+R 1 N/A      
The price listed is the manufacturer's suggested retail price for quantities of 1K units. However, prices in today's market are fluid and may change without notice.
MSL = Moisture Sensitivity Level - per IPC/JEDEC J-STD-020
SMD = Standard Microcircuit Drawing
 
  Description

The ISL6565A, ISL6565B controls microprocessor core voltage regulation by driving up to 3 synchronous-rectified buck channels in parallel. Multiphase buck converter architecture uses interleaved timing to multiply channel ripple frequency and reduce input and output ripple currents.

The difference between the ISL6565A and the ISL6565B is that the ISL6565A utilizes rDS(ON) current sensing, while the ISL6565B utilizes DCR current sensing for each phase. These cost and space saving methods of current sensing are used for adaptive voltage positioning (droop), channelcurrent balancing, and overcurrent protection. To ensure the accuracy of droop, a programmable internal temperature compensation function is implemented to compensate the effect of rDS(ON) and DCR temperature sensitivity.

A unity gain, differential amplifier is provided for remote voltage sensing. Any potential difference between remote and local grounds is eliminated using the remote-sense amplifier. The precision threshold-sensitive enable input is available to accurately coordinate the start up of the ISL6565A, ISL6565B with Intersil MOSFET driver ICs. Dynamic-VID™ technology allows seamless on-the-fly VID changes. The offset pin allows accurate voltage offset settings that are independent of VID setting.

 
  Key Features
 
  • Multiphase Power Conversion
    • 2 or 3 Phase Operation
  • Precision Core Voltage Regulation
    • Differential Remote Voltage Sensing
    • ±0.5% System Accuracy Over Temperature and Life
    • Adjustable Reference-Voltage Offset
  • Precision rDS(ON) or DCR Current Sensing
    • Integrated Programmable Temperature Compensation
    • Accurate Load-Line Programming
    • Accurate Channel-Current Balancing
    • Low-Cost, Lossless Current Sensing
  • Input Voltage: 12V or 5V Bias
  • Microprocessor Voltage Identification Input
    • Dynamic VID® Technology
    • 6-Bit VID Input
    • 0.8375V to 1.600V in 12.5mV Steps
  • Threshold Enable Function for Precision Sequencing
  • Overcurrent Protection
  • Overvoltage Protection
  • Digital Soft-Start
  • Operation Frequency up to 1.5MHz per Phase
  • QFN Package
    • Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline
    • Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile
  • Pb-free Available
Related Documentation
 
Datasheet(s)   Datasheet(s):
 
  Parametric Data
VIN (min) (V)3
VIN (max) (V)12
VOUT (min) (V).8375
VOUT (max) (V)1.6
IOUT (max) (A)>90
VBIAS (V)5, 12
ApplicationsVR10
 
  Related DevicesParametric Table   Parametric Table
 
 ISL6316 Enhanced 4-Phase PWM Controller with 6-Bit VID Code Capable of Precision RDS(on) or DCR Differential Current Sensing for VR10 Application 
 ISL6556A Optimized Multiphase PWM Controller with 6-Bit DAC for VR10.X Application 
 ISL6556B Optimized Multiphase PWM Controller with 6-Bit DAC and Programmable Internal Temperature Compensation for VR10.X Application 
 ISL6561 Multiphase PWM Controller with Precision Rds, On or DCR Current Sensing 
 ISL6563 Two-Phase Multiphase Buck PWM Controller with Integrated MOSFET Drivers 
 ISL6565B Multiphase PWM Controller with Precision rDS(ON) or DCR Current Sensing for VR10.X Application 
 ISL6566 Three-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications 
 ISL6566A Three-Phase Buck PWM Controller with Two Integrated MOSFET Drivers and One External Driver Signal 
 ISL6568 Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications 

 
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