STMicroelectronics, Geneva, Switzerland, is launching the LEOPOL1 point-of-load step-down converter for low-Earth orbit (LEO) deployments targeting the needs of equipment developers in the space market. It is the latest in ST’s LEO series of power, analog, and logic ICs developed for low cost of ownership with quality assurance and radiation hardness optimized for LEO satellites. They leverage automotive best practices including statistical process control. They provide extended flexible features including out-of-phase current sharing, which permits multiplying the current to the load with multiple LEOPOL1 converters working in parallel. In addition, synchronization capability allows easy sequencing to power-up equipment with multiple voltage rails. The converter delivers up to 7 A, accepts an input voltage up to 12V at ground level and has demonstrated 5 A at 6V at 62 MeV.cm2/mg s.
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