Renesas Electronics offers three easy-to-use PMIC reference designs that can power multiple power rails for Xilinx Artix-7 FPGA, Spartan-7 FPGA and Zynq-7000 SoC with or without DDR memory. The company has worked closely with Xilinx to provide low-risk and easy-to-design power solutions to accelerate FPGA and SoC design. This reference design accelerates the development of hybrid power supplies for industrial and computer applications, including machine vision cameras, motor controls, PLCs, home gateways and devices, and portable medical and wireless devices.
The company's efficient PMIC reference design provides a user-friendly turnkey solution that enables a single design to support various Xilinx speed grades and DDR memory types: DDR3, DDR3L, DDR4, LPDDR2, and LPDDR3. They are based on four-phase, three-output ISL91211AIK PMIC and four-output ISL91211BIK PMIC. Both PMICs can provide a total output current of up to 20A and highlight independent dynamic voltage scaling. Their control loops have been adjusted to best assist Xilinx FPGA load curves. These devices internally manage the power-on and power-off timing of their power supplies without the need for an external timing controller. Using a 2MHz switching frequency and fast load transient response allows each PMIC board to use 22uF output capacitors and a small inductor to reduce the solution size. PMIC is available in 4.7mm x 6.3mm, 35 ball BGA, 0.8mm pitch package.
"Our PMIC reference design provides a tested and complete solution that can connect and power Xilinx's Artix-7, Spartan-7 and Zynq-7000 devices, thereby greatly speeding up customer development," Mobile, Infrastructure And Andrew Cowell, vice president of Internet of Things Power. Renesas Electronics Business Department. "Both of these multi-phase PMICs use Renesas Electronics' industry-leading R5 modulation technology to achieve extremely fast transient response, while allowing designers to dynamically adjust power to improve overall system performance."