Datasheet
ISL68222, ISL68233
Digital Dual Output, 5-Phase Controller
The ISL68222 and ISL68233 are digital dual output
multiphase (X+Y ≤ 5) PWM controllers supporting
PMBus V1.3/AVSBus interfaces. The controllers can
be configured to support any phase assignments up
to a maximum of five phases across the two outputs
(X and Y). For example, 4+1, 3+2, 3+1, 1+1, or a
single output operation as a 5+0 configuration is
supported. Increased power density and PMBus V1.3
interface support allow the ISL68222 and ISL68233 to
support any demanding power supply requirement.
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 ISL68233 with AVSBus complements PMBus by
providing a common high-speed interface to
accelerate point-to-point communication between the
controller and load to statically and dynamically
control the processor voltage and deliver a balanced,
power efficient design.
• Flexible phase assignment from 0 to 5 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
The ISL68222 and ISL68233 use 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™ software to configure and monitor
the device.
• Highly accurate current sensing for excellent
load-line regulation and accurate OCP
○ Supports the full range of Renesas Smart Power
Stage (SPS) devices
• Comprehensive fault management enables high
reliability systems
○ Pulse-by-pulse (per phase) and total output
current limiting
With minimal external components, easy
configuration, robust fault management, and highly
accurate regulation capability, implementing a
high-performance, multiphase regulator has never
been easier.
○ Black Box status recording capability with first
fault indicator
• Intuitive configuration using PowerNavigator
• SMBus/PMBus V1.3 compatible
Applications
• Up to 16 user configurations stored in device
Non-Volatile Memory (NVM)
• DDR memory solutions
• Artificial intelligence/accelerator cards (FPGA,
ASIC)
Related Literature
• Network equipment
For a full list of related documents, visit our website:
• ISL68222 and ISL68233 device pages
• Server/storage equipment
• Telecom/datacom equipment
• Point-of-load power supply (memory, DSP, ASIC,
FPGA)
R16DS0036EU0100 Rev.1.00
Oct.1.20
Page 1 of 102
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