IRPS5401 PMIC Datasheet IRPS5401 PMIC Flexible Power Management Unit 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 -40C to +125C T operation J 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, FPGAs 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. Datasheet Please read the Important Notice and Warnings at the end of this document V 2.6 www.infineon.com page 1 of 64 2021-01-11 IRPS5401 PMIC Flexible Power Management Unit Table of contents Table of contents Features ........................................................................................................................................ 1 Potential applications ..................................................................................................................... 1 Description .................................................................................................................................... 1 Table of contents ............................................................................................................................ 2 1 Ordering Information ............................................................................................................. 4 2 Application Circuit.................................................................................................................. 6 3 Pinout Diagram ...................................................................................................................... 7 4 Pin Function .......................................................................................................................... 8 5 Block Diagram ...................................................................................................................... 11 6 Absolute Maximum Ratings .................................................................................................... 12 7 Electrical Specifications ......................................................................................................... 13 8 Typical Application Diagrams ................................................................................................. 20 9 Description ........................................................................................................................... 24 9.1 One-time Programmable (OTP) Memory ............................................................................................. 24 9.2 MTP pin (pin 54) ..................................................................................................................................... 24 9.3 Device Power-up and Initialization....................................................................................................... 25 9.4 Addressing the IRPS5401 ...................................................................................................................... 26 9.5 Switching Frequency ............................................................................................................................. 27 9.6 Synchronizing to an External Clock ...................................................................................................... 28 9.7 Switcher A in External Powerstage Mode ............................................................................................. 28 9.8 Digital Controller & PWM ....................................................................................................................... 29 9.9 Diode Emulation / Discontinuous Mode Operation/AOT ..................................................................... 30 9.10 Output Voltage Sensing, Telemetry and Faults ................................................................................... 30 9.11 Output Over Voltage Protection (OVP) ................................................................................................. 31 9.12 Output Under Voltage Protection (UVP) ............................................................................................... 32 9.13 Current Sensing, Telemetry and Faults ................................................................................................ 33 9.14 Over-current Protection (OCP) ............................................................................................................. 34 9.15 Input Voltage Sensing, Telemetry and Faults ...................................................................................... 35 9.16 Die Temperature Sensing, Telemetry and Faults ................................................................................. 36 9.17 Power Sequencing and Global Faults ................................................................................................... 36 9.18 Sleep ...................................................................................................................................................... 38 9.19 Combined Switcher C and D Operation ................................................................................................ 38 9.20 Linear Regulator .................................................................................................................................... 38 9.21 LDO Monitoring and Faults ................................................................................................................... 39 9.22 Output Voltage Reporting, Output Overvoltage Protection and Undervoltage Protection ............... 39 9.23 Input Voltage Reporting, Input UVLO and Input Overvoltage Protection ........................................... 39 9.24 Over Current Protection ........................................................................................................................ 39 9.25 I2C Security ............................................................................................................................................ 40 9.26 Password Protection ............................................................................................................................. 41 9.27 Pin Protection ........................................................................................................................................ 41 10 Layout Guidelines ................................................................................................................. 43 10.1 Sample layout ........................................................................................................................................ 44 11 Typical Performance ............................................................................................................. 47 11.1 Typical thermal performance at max output power............................................................................ 48 12 PMBUS Commands ................................................................................................................ 49 Datasheet 2 of 64 V 2.6 2021-01-11