SLVK173 July 2024 TPS7H4011-SP
The purpose of this study was to characterize the effect of heavy-ion irradiation on the single-event effect (SEE) performance of the TPS7H4011-SP synchronous buck converter. Heavy-ions with LETEFF = 75MeV·cm2/mg were used for the SEE characterization campaign. Flux of approximately 5 × 104 ions/cm2 × s and fluences of approximately 107 ions/cm2 per run were used for the characterization. The SEE results demonstrated that the TPS7H4011-SP is free of destructive SEL and SEB and SET/SEFI up to LETEFF = 75MeV·cm2/mg across the full electrical specifications. CREME96-based worst-week event-rate calculations for LEO(ISS) and GEO orbits for the DSEE and SET are presented for reference.