The IRPS5401has been developed as a fully integrated PMIC solution that replaces multiple regulators with a single device in a compact 7 mm x 7 mm 56 pin QFN package and is suitable for current and future applications in high density ASIC and FPGA. Additional applications comprise CPU multi-rail systems, embedded computing systems, and communication and storage systems.
The IRPS5401 is designed for single rail operation ranging from 5 V to 12 V, where most PMICs are only 5 V. It has one 500 mA LDO output, and four configurable switching regulator outputs, two at 2 A, and two at 4 A. The outputs of the IRPS5401 can be used to provide the typical rails required for core, memory, and I/O voltages. The voltage output range is between 0.5 V and 3.6 V for regulators A to D, and between 0.25 V and 5.1 V for the LDO.
Switching regulator A can output up to 50 A if combined with an external Power Stage. Switching regulators C and D can be combined to deliver 8 A in a low ripple, dual-phase configuration.
According to the company, all outputs are well within the power requirements of most FPGAs and ASICs ranging between 10 W to 50 W, including integrated voltage sequencing.
Industry standard PMBus commands provide an easy-to-use interface for status and telemetry, and PMBus can be used to configure the output voltages in 5 mV steps.
