REFD6322, Remote Radio Head Power Supplies Reference Design

REFD6322, Reference design provides all the power-supply rails and power sequencing necessary to power Xilinx ZU9/15 Remote Radio Head power supplies. The module accepts 12V input voltage and generates eleven power rails. The VCCPINT output is set to 0.85V with 3A output current capability by using the MAX15303 step-down switching regulator. The VCCINT output is set to 0.72V with 20A output current capability by using the MAX20743 PMBus step-down switching regulator. Both VMGTAVCC and VMGTAVTT output voltages are generated from the MAX17509 dual step-down regulator. The power module provides extremely compact, high-efficiency power solutions with high-precision output voltages and excellent transient response