Multi-Output PMIC with Integrated Sequencer and PMBus
The IRPS5401 from Infineon 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 powIRstage® to deliver up to 50A or more.
Basic application circuit (click on diagram to enlarge)
Applications include:
- High density ASIC, FPGA & CPU multi-rail systems
- Embedded Computing systems
- Communications and Storage systems
Features include:
- 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 PowIRstage 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 to +125 degrees C TJ operation
- Pb-Free, RoHS6, 7x7mm, 56-pin, 0.4mm pitch QFN
