Integrated FET DC-DC Converter for Harsh Environments



The TPS50301 is a 6.3-V, 3-A and the TPS50601 is a 6.3-V, 6-A synchronous step down converter which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and a high switching frequency, reducing the inductor's footprint. The devices are offered in a thermally enhanced 20-pin ceramic, dual in-line flatpack package.



  • SEL Latchup Immune to
    LET = 85 MeV-cm2/mg
  • Total Dose (TID) tolerance = 100kRad (Si)
  • QMLV, RHA Qualification Pending


  • -55°C to 210°C Temperature Range
  • 3-A Output
  • No Thermal Shutdown

For a complete portfolio of standard catalog semiconductor ICs for radiation tolerant products go to or for all the high temperature offerings

Features and benefits

  • Integrated 55-mΩ/50-mΩ MOSFETs
  • Split Power Rail: 1.6 V to 6.3 V on PVIN
  • Power Rail: 3 V to 6.3 V on VIN
  • Flexible Switching Frequency Options:
    • 100-kHz to 1-MHz Adjustable Internal Oscillator
    • External Sync Capability from 100 kHz to 1 MHz
    • Sync Pin Can Be Configured as a 500-kHz Output for Master/Slave Applications


  • Peak efficiency 90% (DO=3.3 V)
  • 0.795-V ±1.258% Voltage Reference at 25°C
  • Monotonic Start-Up into Pre-Biased Outputs
  • Adjustable Slow Start and Power Sequencing
  • Power Good Output Monitor for Undervoltage and Overvoltage
  • For SWIFT Documentation,


video platformvideo managementvideo solutionsvideo player

QML-V / RHA In Qualification

  • High-Temperature GuideHigh-Temperature Guide
    (PDF Download)
  • Space productSpace Products Guide
    (PDF Download)

TPS50301HT chipshot

Back to top