The ISL8272M is a 50A step-down PMBus compliant digital
power module. Integrated in the module is a high performance
digital PWM controller, dual-phase power MOSFETs, inductors
and the passives. This high efficiency power module is capable
of delivering 50A without the need for airflow and heatsink.
The ISL8272M can be placed in a current sharing
configuration with up to 4 modules in parallel to deliver 200A
continuous current.
The ISL8272M operates with the ChargeMode™ control
architecture, which responds to a transient load within a single
switching cycle. The ISL8272M comes with operating in a pin
strap mode; output voltage, switching frequency device, SMBus
address, input UVLO, soft-start/stop and current sharing can be
programmed through external resistors. More configuration such
as fault limits, fault response, margining and sequencing can be
easily programmed via the PMBus interface. PMBus can be used
to monitor voltages, currents, temperatures and fault status. The
ISL8272M is supported by the PowerNavigator™ software, a
graphical user interface (GUI) that can be used to configure
modules to a desired solution.
The ISL8272M is built in a compact (18mmx23mmx7.5mm)
and low profile overmolded HDA package, suitable for
automated assembly by standard surface mount equipment.

Features
• Complete digital switch mode power supply
• Wide input voltage range: 4.5V to 14V
• Programmable output voltage range: 0.6V to 5V
• PMBus compliant communication interface
• Programmable VOUT, margining, UV/OV, UC/OC, UT/OT,
soft-start/stop, sequencing and external synchronization
• Monitor of VIN, VOUT, IOUT, temperature, duty cycle, switching
frequency, power-good and faults
• Fast response ChargeModeTM control architecture
• Multiphase current sharing with up to 4 modules
• ±1.0% VOUT accuracy over line, load and temperature
• Internal nonvolatile memory and fault logging
• Thermally enhanced HDA package

Applications
• Server, telecom, storage and datacom
• Industrial/ATE and networking equipment
• General purpose power for ASIC, FPGA, DSP and memory