RFSoC gen2/gen3 Reference Design using Discrete Regulators

Xilinx part numbers

  • XCZU39DR
  • XCZU43DR
  • XCZU46DR
  • XCZU47DR
  • XCZU48DR
  • XCZU49DR

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Overview

  • 12Vin design (no intermediary regulator required)
  • Design can be easily scaled/modified for customer requirements
  • Common use of parts allow step and repeat for ease of design
  • Scalable 2 phase design (30A per ph) for high efficiency and fast transient response
  • Total system efficiency ~90%
  • Total solution size ~3.7 sqin including input & output Caps

MPS Products Used

Part Number Quantity Description
MP8796B 2 16V, 30A, Scalable, Digital, Synchronous Step-Down Converter with PMBus
MP8770C 4 3V to 17V, 8A, Synchronous Step-Down Converter with Forced CCM
MP8904 2 500mA Linear Regulator
MP2332C 1 18V, 2A, 650kHz, Synchronous Step-Down Converter with PG, SS, and Forced CCM
MPM3683-7 2 2.7V-16V, 8A, Step-Down Power Module in QFN (7x7x4mm) Package
MPM3632C 3 18V Input, 3A Module, Synchronous, Forced CCM, Step-Down Converter with Integrated Inductor
MP20075 3 3A, DDR Termination Regulator
MCS1802 5 Cost Effective Hall Effect-Based Linear Current Sensor IC, 3.3V Supply