DATASHEET
ISL8271M FN8636
Rev.4.00
Aug 17, 2017 Digital DC/DC PMBus 33A Module
The ISL8271M is a 33A step-down DC/DC power supply module
with an integrated digital PWM controller, synchronous power
switches, an inductor, and passives. Only bulk input and output
capacitors are needed to finish the design. The 33A of
continuous output current can be delivered without the need
for airflow or a heatsink. The thermally enhanced HDA module
is capable of dissipating heat directly into the PCB.
The ISL8271M uses ChargeModeв„ў control architecture, which
responds to a transient load within a single switching cycle.
The ISL8271M comes with a preprogrammed configuration for
operating in a pin-strap mode: the output voltage, switching
frequency, and the device SMBus address can be programmed
with external resistors. Other configuration options, such as
soft-start and fault limits can be programmed or changed
using the PMBus compliant serial bus interface. PMBus can be
used to monitor voltages, current, temperatures, and fault
status. The ISL8271M is supported by PowerNavigatorв„ў
software, a Graphical User Interface (GUI) that can be used to
configure modules to a desired solution. Features Complete digital switch mode power supply …
