The DSA70C100HB is an isolated high-voltage DC–DC converter from IXYS. It is a dual-stage, negative-output buck-boost converter with a switching frequency of 250kHz, capable of delivering up to 70W continuous power with a wide 4:1 input voltage range of 4.5V to 18V. It features a 4V to 20V output voltage range, a 0.95 topological efficiency, and a comprehensive protections suite. Additionally, it features built-in active-clamp control with Dynamic Lossless Interleaving (DLI) to reduce power losses. The converter is designed to be used in applications that require high power-to-footprint ratio, wide input voltage ranges, high efficiency, and excellent thermal performance.