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Power Solutions for Xilinx FPGAs

Xilinx has selected Maxim as the preferred power supplier for the latest high performance FPGA reference designs, including Zynq Ultrascale+, Artix-7, Spartan-7, Kintex Ultrascale and Virtex Ultrascale. Our newest power solutions deliver the performance, ease of use, and flexibility required for today's FPGA-based designs.

In addition to stringent regulation requirements, FPGA power designs require all rails to be properly synchronized and monitored for power faults. Our programmable multichannel power management supervisors, sequencers, and voltage trackers provide the functionality needed to complete your high-performance power management system.

Power Solutions Power Rail Design Featured Products

Power Solutions

Xilinx Artix-7 FPGA Power Solution

Cost- and Efficiency-Optimized Power Solutions for Artix-7 Reference Designs

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Xilinx VCU110 FPGA Power Solution

Complete Power Solution for the Virtex Ultrascale VCU110 Reference Design

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Xilinx Spartan-7 FPGA Power Solution

Cost- and Efficiency-Optimized Power Solutions for Spartan-7 Reference Designs

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Xilinx Zynq Ultrascale+ FPGA Power Solution

Complete Power Solutions for Zynq Ultrascale+ Reference Designs

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Xilinx KCU105 FPGA Power Solution

Complete Power Solution for the Kintex Ultrascale KCU105 Reference Design

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Xilinx VCU108 FPGA Power Solution

Complete Power Solution for the Virtex Ultrascale VCU108 Reference Design

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Power Rail Design

Individual Power Rail Selection

Use Xilinx's Power Estimator spreadsheet to get a list of all power supply rails and a rough estimate of the current consumption for each. Xilinx also provides XPower tools built into their ISEM design environment that provide a more accurate power requirement based on resource utilization, clock frequency, and toggle rates. Click within the following selector tables to view recommended regulators for your rail:

Single Output Voltage Regulators for Core, RAM, MGT, and Auxiliary Rails (V_OUT 0.9V to 3.3V)

V_IN\I_OUT	< 2A	2A to 4.9A	5A to 9.9A	10A to 30A	> 30A
1.8	LDO Buck	Buck Controller	Controller	Controller	Controller
3.3	LDO Buck	Buck	Buck	Buck	Controller
5	Buck	Buck	Buck	Buck Controller	Controller
12	Buck	Buck	Buck	Buck Controller	Buck Controller
> 12	Buck	Buck Controller	Buck Controller	Buck Controller	Controller

Low Noise MGT Rails
Powering a multi-gigabit transceiver (MGT) rail requires special design considerations due to requirements for very low ripple and noise (10mV peak-to-peak maximum).

Noise/ripple is not specified in a regulator datasheet. Meeting a noise/ripple spec is achieved through multiple means–for example, board layout, control architecture, and external components. Any analog PWM controller/regulator that operates in fixed frequency, PWM mode all the time (no skip mode) is a good candidate for driving an MGT power rail. LDOs also generally meet the MGT rail noise/ripple specification.

Select a product from the table above to find regulators to power MGT rails. Be sure to take note of the special design considerations for ripple/noise in layout and component selection.

Multiple Output Voltage Regulators

V_IN	Highest Output < 3A	Highest Output 3A to 5A	Highest Output 5A to 15A	Highest Output > 15A
1.8	-	Dual Controller	Dual Controller	Dual Controller
3.3	Dual Buck Quad Buck	Dual Buck	Dual Buck Dual Controller	Dual Controller
5	Dual Buck Quad Buck	Dual Buck Dual Controller Triple Controller Quad Output	Dual Controller Triple Controller Quad Controller	Dual Controller Triple Controller
12	Dual Buck Triple Output	Dual Controller Triple Output Quad Output	Dual Controller Quad Output	Dual Controller Quad Output
> 12	Dual Buck Triple Output	Dual Buck Dual Controller Triple Output Quad Output	Dual Controller Triple Output Quad Output	Dual Controller Quad Output

Type	ID	PDF	Title
Application Note	5447		Choose the Right Power Supply for Your FPGA
Tutorial	5132		Power-Supply Solutions for Xilinx FPGAs

Power Solutions for Xilinx FPGAs

Power Solutions

Xilinx Artix-7 FPGA Power Solution

Xilinx VCU110 FPGA Power Solution

Xilinx Spartan-7 FPGA Power Solution

Xilinx Zynq Ultrascale+ FPGA Power Solution

Xilinx KCU105 FPGA Power Solution

Xilinx VCU108 FPGA Power Solution

Power Rail Design

Individual Power Rail Selection

Featured Products

Multi-Channel Integrated Power Management IC

35A Step-Down Switching Regulator

Also See

Tools & Models

Related Tools & Models

Reference Designs

Reference Designs

Technical Docs

Technical Docs

Trainings & Videos

Trainings & Videos