Xilinx Virtex® UltraScale™ FPGA Multi-Gigabit Transceiver (MGT) Power Solution
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The PMP10520 reference design provides all the power supply rails (1V/20A, 1.2V/30A, 1.8V/4A) necessary to power the multi-gigabit transcievers (MGT) in Xilinx's Virtex® Ultrascale™  FPGAs.  This design uses a 5V input and has a PMBus interface for current and voltage monitoring, margining, timing delays, and fault monitoring.  It uses both TPS544C20 and TPS544B20 which feature internal current sensing and eliminate the need for an external current sense resistor.  This design also meets Xilinx's low output voltage ripple requirements of the MGT rails.

  • Provides all the power rails needed to power MGT rails in a Xilinx Virtex® Ultrascale™  FPGA
  • Design optimized to support a 5V input
  • Low output voltage ripple < 10mV
  • On board power up and power down sequencing using LM3880
  • POL's include integrated PMBUS interface with output voltage and current reporting
  • MGTAVCC and MGTAVTT have lossless MOSFET current sensing, eliminates need for sense resistor

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Schematic/Block Diagram

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Design Files

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(Output Voltage 1)
(Output Voltage 2)
(Output Voltage 3)
Vin (Min) (V)
Vin (Max) (V)
Vout (Nom) (V)11.21.8
Iout (Max) (A)20304
Output Power (W)20367.2
Input TypeDCDCDC
TopologyBuck- Integrated Switch
Buck- Synchronous
Buck- Integrated Switch
Buck- Synchronous
Buck- Synchronous
Designed forFPGA  

TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM3880  3 Rail Simple Power Sequencer with Fixed Time Delay  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS40400  3.0V - 20V, 30A, Synchronous Buck Controller with PMBusā„¢, including Telemetry  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS544B20  4.5-18V 20A SWIFT™ Synchronous Buck Converters with PMBus™ Programmability and Monitorin  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS544C20  4.5-18V 30A SWIFT™ with PMBus™ Programmability and Voltage, Current and Temp Monitoring  Step-down (buck) regulators  Sample & Buy Not Available

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM3880 Download Download
TPS40400 Download Download
TPS544B20 Download Download
TPS544C20 Download Download

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Technical documentation

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User guides (2)
Title Type Size (KB) Date
PDF 298 18 Nov 2014
PDF 1092 25 Sep 2014
Design files (3)
Title Type Size (KB) Date
ZIP 852 25 Sep 2014
PDF 87 25 Sep 2014
PDF 1062 25 Sep 2014

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