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ISL6313CRZ Datasheet

  • ISL6313CRZ

  • Intersil Corporation [Two-Phase Buck PWM Controller with In...

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  • INTERSIL

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ISL6313
Data Sheet
March 5, 2007
FN6448.0
Two-Phase Buck PWM Controller with
Integrated MOSFET Drivers for Intel VR11
and AMD Applications
The ISL6313 two-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 multi-
phase product families. By reducing the number of external
parts, this integration is optimized for a cost and space
saving power management solution.
One outstanding feature of this controller IC is its
multiprocessor compatibility, allowing it to work with both Intel
and AMD microprocessors. Included are programmable VID
codes for Intel VR11 as well as AMD 5-bit and 6-bit DAC tables.
A circuit 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.
The ISL6313 also includes advanced control loop features
for optimal transient response to load apply and removal.
One of these features is highly accurate, fully differential,
continuous DCR current sensing for load line programming
and channel current balance. Active Pulse Positioning (APP)
Modulation and Adaptive Phase Alignment (APA) are two
other unique features, allowing for quicker initial response to
high di/dt load transients. With this quicker initial response to
load transients, the number of output bulk capacitors can be
reduced, helping to reduce cost.
Integrated into the ISL6313 are user programmable current
sense resistors, which require only a single external resistor
to set their values. No external current sense resistors are
required. Another unique feature of the ISL6313 is the
addition of a dynamic VID compensation pin that allows
optimizing compensation to be added for well controlled
dynamic VID response.
Protection features of this controller IC include a set of
sophisticated overvoltage, undervoltage, and overcurrent
protection. Furthermore, the ISL6313 includes protection
against an open circuit on the remote sensing inputs.
Combined, these features provide advanced protection for the
microprocessor and power system.
Features
鈥?Integrated Multi-Phase Power Conversion
- 2-Phase or 1-Phase Operation with Internal Drivers
鈥?Precision Core Voltage Regulation
- Differential Remote Voltage Sensing
-
卤0.5%
System Accuracy Over Temperature
- Adjustable Reference-Voltage Offset
鈥?Optimal Transient Response
- Active Pulse Positioning (APP) Modulation
- Adaptive Phase Alignment (APA)
鈥?Fully Differential, Continuous DCR Current Sensing
- Integrated Programmable Current Sense Resistors
- Accurate Load Line Programming
- Precision Channel Current Balancing
鈥?Variable Gate Drive Bias: 5V to 12V
鈥?Multi-Processor Compatible
- Intel VR11 Mode of Operation
- AMD Mode of Operation
鈥?Microprocessor Voltage Identification Inputs
- 8-Bit DAC
- Selectable between Intel VR11, AMD 5-bit, and AMD
6-bit DAC tables
- Dynamic VID Technology
鈥?Dynamic VID Compensation
鈥?Overcurrent Protection
鈥?Multi-tiered Overvoltage Protection
鈥?Digital Soft-Start
鈥?Selectable Operation Frequency up to 1.5MHz Per Phase
鈥?Pb-free Available (RoHS Compliant)
Ordering Information
PART
NUMBER
(Note)
PART
MARKING
TEMP.
(掳C)
PACKAGE
(Pb-free)
PKG.
DWG. #
ISL6313CRZ* ISL6313 CRZ
ISL6313IRZ*
ISL6313 IRZ
0 to +70 36 Ld 6x6 QFN L36.6x6
-40 to +85 36 Ld 6x6 QFN L36.6x6
NOTE: Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate
termination finish, which are 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-020C.
*Add 鈥?T鈥?suffix for tape and reel.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.

ISL6313CRZ 产品属性

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