Features

 Full power system including 5 integrated outputs

 4A, 4A, 2A and 2A Switching Regulators

 500mA Source/Sink Linear regulator

 Single rail operation 5.5V to 12V

 Output Range from 0.25V to 5.1V for outputs A-D and 0.5V to 3.6V for LDO

 Allows combining outputs and/or the use of an external IR MOSFET™ Power Stage to increase output

current to as high as 50A

 Emulated current mode control without external compensation

 Differential voltage sensing on Switcher A for higher accuracy

 I2C / PMBus with integrated level shifter

 Advanced Sequencing control

 Extensive PMBus command set of 74 commands

 Integrated current sensing and full telemetry including voltage, current, temperature and faults

 Rated for -40°C to +125°C TJ operation

 Pb-Free, RoHS6, 7x7mm, 56-pin, 0.4mm pitch QFN

Potential applications

 High density ASIC, FPGA & CPU multi-rail systems

 Embedded Computing systems

 Communications and Storage systems

Description

The IRPS5401 is a complete power management unit delivering up to 5 output voltages to processors, FPGA’s

and other multi-rail power systems. Four high efficiency configurable switching regulators and a Source/Sink

Linear regulator provide the typical rails required such as core voltage, memory voltage and I/O voltages.

Integrated, accurate current, voltage and temperature sensing allows telemetry and fault reporting through the

I2C/PMBus.

The IRPS5401 switching regulators utilize fixed frequency emulated current mode control, and thus no external

compensation is required.

The IRPS5401 is highly flexible. Switchers A and B deliver 2A each. Switchers C and D, deliver 4A each and can

also be combined to deliver 8A. Further, Switcher A can be configured to use an external IR MOSFET™ Power

Stage to deliver up to 50A or more.