Intersil ISL69137 Diode braking for overshoot reduction Datasheet

DATA SHORT
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Digital Dual Output, 7-Phase Configurable, IMVP8 PWM
Controller
ISL69137
Features
The ISL69137 is a digital dual output, flexible multiphase
(X+Y ≤ 7) PWM controller designed to be compliant with Intel
IMVP8 specifications. The digital multiphase controller can be
configured to support any desired phase assignments up to a
maximum of seven phases across the two outputs (X and Y).
For example, 6+1, 5+2, 4+2, 3+3, 3+2, or even single output
operation as a 7+0 configuration supported. ISL69137, with a
flexible X+Y ≤ 7 phase assignment, supports SVID interface
along with PMBus v1.3 interface, making it ideal for
controlling the microprocessor core, memory and system rails
per Intel IMVP8 platforms.
• Advanced linear digital modulation scheme
- Zero latency synthetic current control for excellent high
frequency current balance
- Auto phase add/drop for excellent load vs efficiency
profile
- Dual edge modulation for faster transient response
- Excellent DVID performance
The ISL69137 utilizes Intersil’s proprietary digital linear
synthetic 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 Intel microprocessors. Device configuration and
monitoring are accomplished via Intersil’s 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.
The ISL69137 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.
With minimal external components, ability to store up to 8
configurations, robust fault management, and highly accurate
regulation capability, implementing a high-performance,
multiphase regulator has never been easier.
Applications
• Core and memory for Intel IMVP8 based processor
- High performance servers core or memory rail
- High performance graphic rail
- High-end desktop with overclocking option
• Networking, data center, storage and general purpose
• Flexible phase assignment from 0 to 7 phases per output
• Up to 1MHz switching frequency operation for high density
designs
• Diode braking for overshoot reduction
• 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 stage
- Supports DCR sense with integrated temperature
compensation
• Supports phase doubler (ISL6617A) for up to 14-phase
operation
• Comprehensive fault management enables high reliability
systems
- 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 Protection (CFP) flag
output
• Intuitive configuration via PowerNavigator™
• SMBus/PMBus v1.3 compatible
- Up to 2MHz bus interface
- NVM to store up to eight configurations
• Pb-free (RoHS compliant)
September 6, 2016
FN8672.1
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CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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ISL69137
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September 6, 2016
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