DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/ISL69144
ISL69144
FN8708
Rev.4.00
Jan 12, 2018
Digital Dual Output 4-Phase AMD PWM Controller
The ISL69144 is a digital dual output, multiphase PWM
controller designed to be compliant with AMD SVI2
Features
• Advanced linear digital modulation scheme
specifications. The digital multiphase controller can be
configured to support any desired phase assignments up to a
maximum of four phases across the two outputs (X and Y). For
example, 3+1, 2+2, or even a single output operation as a 4+0
configuration are supported. With a flexible X+Y ≤ 4-phase
assignment along with PMBus and SVI2 interfaces, the
ISL69144 is ideal for controlling the microprocessor core,
memory, and system rails of AMD SVI2 based platforms.
- Zero latency synthetic current control for excellent high
frequency current balance
- Auto phase add/drop for excellent load vs efficiency
profile
- Excellent DVID performance
- Dual edge modulation for faster transient response
• Up to 1MHz operation for high density designs
• Diode braking for overshoot reduction
The ISL69144 uses a proprietary digital linear predictive
current modulation scheme to achieve the industry’s best
combination of transient response and ease of tuning while
addressing the challenges of powering the latest generation of
AMD microprocessors. Configuration is accomplished through
the intuitive PowerNavigator™ GUI. Diode emulation and
automatic phase add/drop features allow the user to extract
maximum efficiency from the converter regardless of load
conditions.
• Diode emulation for enhanced light-load efficiency
• Differential remote voltage sensing supports ±0.5%
closed-loop system accuracy over load, line, and
temperature
• Highly accurate current sensing for excellent load line
regulation and accurate OCP
- Supports ISL99227 60A smart power stages
The ISL69144 supports a comprehensive fault management
system to enable the design of highly reliable systems. From
an overcurrent protection scheme including peak and average
detection, to the configurable power-good and catastrophic
fault protection flags, any need is accommodated.
- Supports DCR sense with integrated temperature
compensation
• Comprehensive fault management enables high reliability
systems
With minimal external components, the ability to store eight
configurations, robust fault management, and highly accurate
regulation capability, implementing a high-performance,
multiphase regulator has never been easier.
- Pulse-by-pulse phase current limiting
- Total output current protection
- Output and input OV/UV protection
- Open voltage sense detect
- Black box recording capability for faults
- Configurable Catastrophic Failure Flag (CFP) output
Related Literature
• For a full list of related documents, visit our website
- ISL69144 product page
• Intuitive configuration using PowerNavigator
• SMBus/PMBus v1.3 compatible
- Up to 2MHz bus interface
- NVM to store up to eight configurations
• Pb-free (RoHS compliant)
Applications
• Core and graphic for AMD SVI2 based processor
- High performance servers core rail
- High performance graphic rail
- High-end desktop with overclocking option
• Networking, data center, storage, and general purpose
FN8708 Rev.4.00
Jan 12, 2018
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