Datasheet
ISL68229, ISL68239
Digital Triple Output, 12-Phase PWM Controller
The ISL68229 and ISL68239 are digital triple output
multiphase (X+Y+Z ≤ 12) PWM controllers supporting
PMBus V1.3/AVSBus interfaces. The controller can
be configured to support any phase assignments up
to a maximum of twelve phases across the three
outputs (X, Y, and Z). For example, 10+1+1, 10+2,
8+2+1, 1+1, or even single output operation as a
12+0 configuration is supported. Increased power
density, combined with support for the PMBus V1.3
interface, allows the device 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
• Flexible phase assignment from 0 to 12 phases per
output
Additionally, the ISL68239 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, delivering a balanced,
power efficient design.
• 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 ISL68229 and ISL68239 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™ 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
• Up to 16 user configurations stored in device
Non-Volatile Memory (NVM)
Applications
• DDR memory solutions
• Artificial intelligence/accelerator cards (FPGA,
ASIC)
• Network equipment
• Server/storage equipment
• Telecom/datacom equipment
• Point of load power supply (memory, DSP, ASIC,
FPGA)
R16DS0006EU0101 Rev.1.01
Jul 21, 2022
Page 1 of 106
© 2020-2022 Renesas Electronics
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