STAR-Dundee STAR-Tiger power supply for SpaceFibre using TI radiation-hardened power and analog ICs


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STAR-Tiger is a high-performance SpaceFibre routing switch, part of the European Union Hi-SIDE project, and winner of the Innovation in Space Award from the European Space Forum. The power supply board in the STAR-Tiger unit provides the primary power rails to the Xilinx KU060 FPGA being used to implement the routing switch.  The STAR-Tiger power supply board uses radiation hard power supply devices from Texas Instruments, to demonstrate a robust power supply for high-performance computing and networking in spacecraft.

  • Core supply: 2x TPS7H4001-SP
  • Auxiliary supplies: 4x TPS50601A-SP, 1x TPS7H1101A-SP
  • Redundant power switching: TPS7H2201-SP
  • Power sequencing, fault detection and control: LM139AQML-SP, SN54AC00-SP
Buck converters (integrated switch)
TPS50601A-SP Radiation-hardened QMLV, 3-V to 7-V input, 6-A synchronous step-down converter TPS7H4001-SP Radiation-hardness-assured (RHA), 3-V to 7-V input, 18-A, synchronous step-down converter


LM139AQML-SP Low Power Low Offset Voltage Quad Comparator


Linear & low-dropout (LDO) regulators
TPS7H1101A-SP Radiation-hardened QMLV, 1.5-V to 7-V input, 3-A low-noise adjustable low-dropout (LDO) regulator


NAND gates
SN54AC00-SP Space 4-ch, 2-input, 2-V to 6-V NAND gates


eFuses & hot swap controllers
TPS7H2201-SP Radiation-hardened QMLV, 1.5-V to 7-V input, 6-A load switch/eFuse
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Photos courtesy of STAR-Dundee Ltd.

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STAR-TIGER-POWER — STAR-Dundee STAR-Tiger power supply for SpaceFibre

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Technical documentation

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White paper Space Power Supply for the STAR-Tiger SpaceFibre Routing Switch PDF | HTML 27 Jul 2023

Related design resources

Hardware development

TPS50601ASPEVM-S TPS50601A-SP single-operation evaluation module TPS7H1101SPEVM TPS7H1101SPEVM Evaluation Module TPS7H2201EVM-CVAL TPS7H2201-SP evaluation module for 1.5-V to 7-V input, 6-A load switch and eFuse TPS7H4001QEVM-CVAL TPS7H4001 evaluation module for four-channel, 72-A, synchronous step-down converter

Support & training

Third-party support
TI does not offer ongoing direct design support for this hardware. For support while working through your design, contact STAR-Dundee Ltd..



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