ISL6266, ISL6266A
®
Data Sheet
June 14, 2010
FN6398.3
Two-phase Core Controllers
(Montevina, IMVP-6+)
Features
• Precision Two/One-phase CORE Voltage Regulator
- 0.5% System Accuracy Over-Temperature
- Enhanced Load Line Accuracy
The ISL6266 and ISL6266A are two-phase buck converter
regulators implementing Intel® IMVP-6 protocol with
embedded gate drivers. Both converters use interleaved
channels to double the output voltage ripple frequency and
thereby reduce output voltage ripple amplitude with fewer
components, lower component cost, reduced power
dissipation, and smaller real estate area.
• Internal Gate Driver with 2A Driving Capability
• Dynamic Phase Adding/Dropping
• Microprocessor Voltage Identification Input
- 7-Bit VID Input
3
The ISL6266A utilizes the patented R Technology™,
- 0.300V to 1.500V in 12.5mV Steps
- Support VID Change On-the-Fly
Intersil’s Robust Ripple Regulator modulator. Compared with
traditional multiphase buck regulators, the R Technology™
has the fastest transient response. This is due to the R
modulator commanding variable switching frequency during
load transient events.
3
• Multiple Current Sensing Schemes Supported
- Lossless Inductor DCR Current Sensing
- Precision Resistive Current Sensing
3
• CPU Power Monitor
Intel Mobile Voltage Positioning (IMVP) is a smart voltage
regulation technology, which effectively reduces power
dissipation in Intel Pentium processors. To boost battery life,
the ISL6266A supports DPRSLRVR (deeper sleep),
DPRSTP# and PSI# functions, which maximizes efficiency
by enabling different modes of operation. In active mode
(heavy load), the regulator commands the two phase
continuous conduction mode (CCM) operation. When PSI#
is asserted in active mode (medium load), the ISL6266A
operates in one-phase CCM. When the CPU enters deeper
sleep mode, the ISL6266A enables diode emulation to
maximize efficiency.
• Thermal Monitor
• User Programmable Switching Frequency
• Differential Remote CPU Die Voltage Sensing
• Static and Dynamic Current Sharing
• Support All Ceramic Output with Coupled Inductor
(ISL6266)
• Overvoltage, Undervoltage and Overcurrent Protection
• Pb-Free (RoHS Compliant)
Ordering Information
For better system power management, the ISL6266A
provides a CPU power monitor output. The analog output at
the power monitor pin can be fed into an A/D converter to
report instantaneous or average CPU power.
TEMP.
PART NUMBER
(Note)
PART
MARKING
RANGE
(°C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL6266HRZ
ISL6266 HRZ -10 to +100 48 Ld 7x7 QFN L48.7x7
A 7-bit digital-to-analog converter (DAC) allows dynamic
adjustment of the core output voltage from 0.300V to 1.500V.
Over-temperature, the ISL6266A achieves a 0.5% system
accuracy of core output voltage.
ISL6266HRZ-T* ISL6266 HRZ -10 to +100 48 Ld 7x7 QFN L48.7x7
ISL6266AHRZ ISL6266A HRZ -10 to +100 48 Ld 7x7 QFN L48.7x7
ISL6266AHRZ-T* ISL6266A HRZ -10 to +100 48 Ld 7x7 QFN L48.7x7
ISL6266AIRZ ISL6266A IRZ -40 to +100 48 Ld 7x7 QFN L48.7x7
A unity-gain differential amplifier is provided for remote CPU
die sensing. This allows the voltage on the CPU die to be
accurately measured and regulated per Intel IMVP-6+
specifications. Current sensing can be realized using either
lossless inductor DCR sensing or discrete resistor sensing.
A single NTC thermistor network thermally compensates the
gain and the time constant of the DCR variations.
ISL6266AIRZ-T* ISL6266A IRZ -40 to +100 48 Ld 7x7 QFN L48.7x7
*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.
The ISL6266 also includes all the functions for IMVP-6+
core power delivery. In addition, it has been optimized for
use with coupled-inductor solutions. More information on the
differences between ISL6266 and ISL6266A can be found in
the “Electrical Specifications” on page 3 and the “ISL6266
Features” on page 21.
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
3
Copyright Intersil Americas Inc. 2007-2010 All Rights Reserved. R Technology™ is a trademark of Intersil Americas Inc.
All other trademarks mentioned are the property of their respective owners.
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