The reference designs are intended to speed the development of power supplies for a variety of industrial and computing applications, including motor control, machine vision cameras, programmable logic controllers (PLCs), home gateways and appliances, and portable medical and wireless equipment.
Renesas’ high efficiency PMIC reference designs provide turnkey solutions that enable a single design to support different Xilinx speed grades and DDR memory types: DDR3, DDR3L, DDR4, LPDDR2 and LPDDR3. They are based on the four-phase, three output ISL91211AIK PMIC, and the four-output ISL91211BIK PMIC.
These PMICs can deliver up to 20A total output current and feature independent dynamic voltage scaling. Their control loops are tuned to optimally support the load profiles of Xilinx FPGAs.
They are able to manage power up and shutdown sequencing of their rails internally, without requiring external sequencing controllers. Applying 2MHz switching frequency and fast load transient response enables each PMIC board to use 22uF output capacitors and a small inductor to reduce solution size. The PMICs come in 4.7mm x 6.3mm, 35-ball BGA with 0.8mm pitch packages.
“Our PMIC reference designs significantly accelerate customer development schedules by providing tested and complete solutions ready to connect to and power Xilinx’s Artix-7, Spartan-7 and Zynq-7000 devices,” said Andrew Cowell, Vice President, Mobility, Infrastructure and IoT Power Business Division at Renesas. “Both multiphase PMICs employ Renesas’ industry-leading R5 modulation technology for blazingly fast transient response, while allowing designers to dynamically scale power to improve overall system performance.”
