Datasheet
ISL68224
Digital Triple Output, 6-Phase PWM Controller
The ISL68224 is a digital triple output multiphase
(X+Y+Z ≤ 6) PWM controller with PMBus V1.3
compatibility. The controller can be configured to
support any phase assignment up to a maximum of
six phases across the three outputs (X, Y, and Z). For
example, 4+1+1, 3+2+1, 5+1+0, 2+2+2, or even a
single output operation as a 6+0 configuration is
supported. When combined with the Renesas family
of Smart Power Stages and DrMOS devices, designs
of exceptional density and performance can be
created.
Features
• Advanced linear digital modulation scheme
○ Auto phase add/drop with PFM mode for
excellent load vs efficiency profile
○ Dual edge modulation with optional diode braking
for faster transient response
○ Excellent V
transition performance
OUT
○ Zero latency synthetic current control for excellent
high frequency current balance
The ISL68224 uses the proprietary Renesas digital
synthetic current modulation scheme to achieve the
industry-best combination of transient response, ease
of tuning, and efficiency across the full load range.
Diode emulation and automatic phase add/drop
features allow you to extract maximum efficiency from
the converter regardless of load conditions. You can
use the intuitive Renesas PowerNavigator™ to
configure and monitor the device.
• Flexible phase assignment from 0 to 6 phases per
output
• Up to 2MHz switching frequency operation for high
density designs
• 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
With minimal external components, easy
configuration, robust fault management, and highly
accurate regulation capability, implementing a
high-performance, multiphase regulator has never
been easier.
○ Supports the full range of the Renesas Smart
Power Stage (SPS) devices
• Comprehensive fault management enables high
reliability systems
○ Pulse-by-pulse (per phase) and total output
current limiting
Applications
• DDR memory solutions
○ Black Box status recording capability with first
fault indicator
• Artificial intelligence/accelerator cards (FPGA,
ASIC)
• Intuitive configuration using PowerNavigator
• SMBus/PMBus V1.3 compatible
• Network equipment
• Server/storage equipment
• Telecom/datacom equipment
• Up to 16 user configurations stored in device
Non-Volatile Memory (NVM)
• Point-of-Load (POL) power supply (memory, DSP,
ASIC, FPGA)
Related Literature
For a full list of related documents, visit our website:
• ISL68224 device page
FN9297 Rev.1.00
Oct.1.20
Page 1 of 96
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