DATA SHORT
To request the full datasheet, please visit www.intersil.com/products/ISL69128
ISL69128
FN8675
Rev 1.00
Jan 12, 2018
Digital Dual Output, 7-Phase Configurable, VR13/IMVP8 PWM Controller
The ISL69128 is a digital dual output, flexible multiphase
Features
(X+Y ≤ 7) PWM controller designed to be compliant with Intel
• Advanced linear digital modulation scheme
VR13 and 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 are
supported. The ISL69128, with a flexible X+Y ≤ 7 phase
assignment, supports SVID interface along with PMBus 1.3
specifications, making it ideal for controlling the
- Zero latency synthetic current control for excellent HF
current balance
- Auto phase add/drop with a boot refresh function for
excellent load vs efficiency profile
- Dual edge modulation for faster transient response
- Excellent DVID performance
microprocessor core, memory, and system rails for Intel VR13
or IMVP8 platforms.
• Flexible phase assignment from 0 to 7 phases per output
• Up to 1MHz switching frequency operation for high density
designs
The ISL69128 uses a 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 through the intuitive Renesas
PowerNavigator™ application. Diode emulation and automatic
phase add/drop features allow the user to extract maximum
efficiency from the converter regardless of load conditions.
• 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
The ISL69128 supports a comprehensive fault management
system to enable the design of highly reliable systems. From a
multitiered overcurrent protection scheme to the configurable
power-good and catastrophic fault protection flags, almost any
need is accommodated.
- Supports ISL99227 60A smart power stage
- Supports DCR sense with integrated temperature
compensation
• Supports phase doubler (ISL6617A) for up to 14-phase
operation
With minimal external components, easy configuration, robust
fault management, and highly accurate regulation capability,
implementing a high-performance, multiphase regulator has
never been easier.
• 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
Applications
• Core, memory and system rails for Intel VR13 and IMVP8
based processors
- Black box recording capability for faults
- High performance servers core or memory rail
- High performance graphics rail
- Configurable Catastrophic Failure Protection (CFP) flag
output
- High-end desktop with overclocking option
• Intuitive configuration using PowerNavigator
• Networking, data center, storage, and general purpose
• SMBus/PMBus v1.3 compatible
- Up to 2MHz bus interface
- NVM to store up to 8 configurations
• Pb-free (RoHS compliant)
FN8675 Rev 1.00
Jan 12, 2018
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