This reference design uses the TPS53681 multiphase controller and CSD95490Q5MC smart power stages to implement a high-performance design suitable for powering the 0.85-V, 200-A, VCCINT rail of a Xilinx™ Ultrascale+™ FPGA. The secondary output of the controller can then be used to power an auxilliary rail of the FPGA. The smart power stages and integrated PMBus™ allow for easy output voltage setting and telemetry of key design parameters.
The design enables configuration, VID adjustment, and compensation adjustment of the power supply, while providing monitoring of input and output voltage, current, power, and temperature. TI's Fusion Digital Power™ Designer is used for programming, monitoring, validation, and characterization of the system.
| Output voltage options | TIDA-050020.1 |
|---|---|
| Vin (Min) (V) | 10.8 |
| Vin (Max) (V) | 13.2 |
| Vout (Nom) (V) | .9 |
| Iout (Max) (A) | 200 |
| Output Power (W) | 180 |
| Isolated/Non-Isolated | Non-Isolated |
| Input Type | DC |
| Topology | Buck- Multiphase^Buck- Synchronous |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
Download ready-to-use system files to speed your design process.
Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | PMBus voltage regulator reference design for Xilinx Ultrascale+ FPGAs | Feb. 20, 2019 |
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