ISL6595 Datasheet, PDF (1/22 Pages) Intersil Corporation – Digital Multiphase Controller

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Digital Multiphase Controller
The ISL6595 digital multiphase controller provides core
power for today’s high current microprocessors by driving up
to six synchronous-rectified buck-converter channels in
parallel. Interleaved timing of the channels results in a higher
ripple frequency, reducing input and output ripple. With up to
six phases, each capable of up to 2MHz operation, the
ISL6595 can be used to build DC/DC converters that provide
up to 200A with excellent efficiency, low ripple, and the
lowest component count.
The ISL6595 utilizes digital technology to implement all
control functions, providing the ultimate in flexibility and
stability. The ISL6595 incorporates an industry standard I²C
serial interface for control and monitoring. Through the serial
interface, the power supply designer can quickly optimize
designs and monitor parameters. The interface allows the
ISL6595 to provide digitized information for real time system
monitoring and control.
The ISL6595 provides superior loadline accuracy through
internal calibration that measures and corrects current sense
error sources upon start-up. The ISL6595 has
programmable current sense temperature compensation
that allows the designer to tailor the response for best
loadline accuracy over-temperature. Superior loadline
accuracy reduces component count and solution cost.
To further reduce component count the ISL6595
incorporates patented Active Transient Response (ATR)
technology, allowing the fastest response to transient events
for reduced output capacitance.
The flexibility of the ISL6595 allows the power supply
designer to implement a wide range of solutions. When used
with industry standard power train components, the ISL6595
provides the highest performance with lowest component
count and cost.
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
TEMP
RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG #
ISL6595DRZ* ISL6595 DRZ 0 to +85 48 Ld 7x7 QFN L48.7x7P
*Add “-T” or “-TK” suffix for tape and reel. Please refer to TB347 for
details on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die attach
materials, and 100% matte tin plate plus anneal (e3 termination finish,
which is RoHS compliant and compatible with both SnPb and Pb-free
soldering operations). Intersil Pb-free products are MSL classified at
Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
December 4, 2008
ISL6595
FN9192.2
Features
• Multiphase Power Conversion
- 1-Phase to 6-Phase Operation
• 100kHz to 2MHz Switching Frequency
• Supports Intel™ VR10.x and VR11.0 VID Codes
• Supports AMD™ 5-bit and 6-bit VID Codes
• Internal High Precision Voltage Reference
- ±10mV Voltage Setpoint Accuracy
• Precision Digital Current Sense Calibration
• Precise Digital Current Balancing with Programmable
Offsets for Thermal Balancing
• Digitally Programmable Loadline and Loop Compensation
• Differential Voltage Sense
• Digital Temperature Sensor Compensation
• Active Transient Response (ATR) Enables Meeting
Transient Requirements With Reduced Output
Capacitance
• I²C Interface for Monitoring, Control and Configuration
• Internal Non-Volatile Memory (NVM) to Store Custom
Configurations
• Extensive Fault Detection Capability With Two User
Configurable Output Fault Pins (FAULT1, FAULT2)
- Input Undervoltage
- Output Under/Overvoltage
- High Side Short
- Per Phase and Total Output Current
- Multiple internal and External Temperature Limits
- NVM Configuration
- Calibration Range and Time-Out
• Configurable Latched Fault or Autonomous Recovery
Shutdown
• Single +3.3V Supply Operation
• Pb-Free (RoHS compliant)
• 48 Ld QFN Plastic Package
Applications
• Core Power Regulation For Intel™ and AMD™
Micro-Processors
• Intelligent Point-of-Load (POL) Power Regulation
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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