Announcements ALERT! Community is fighting spam attacks at present. Read updates here. Infineon IR HiRelâs RIC70847 Achieves Full DLA MIL.. Infineon IR HiRelâs RIC70847 Achieves Full DLA MIL-PRF-38535 Class V Qualification Infineon IR HiRelâs RIC70847 Achieves Full DLA MIL-PRF-38535 Class V Qualification Infineon IR HiRelâs RIC70847 radiation hardened synchronous buck controller has achieved full DLA qualification to MIL-PRF-38535 Class V (QML-V) under SMD 5962R2320601VXA â the gold standard for microcircuits designed for space and other mission-critical applications. This milestone delivers a fully pedigreed PoL controller ready for the most demanding programs in the industry.  The RIC70847âs QML-V qualification assures utmost reliability and consistency in the deviceâs performance, even after years of orbit. Continue reading to learn more about DLA qualification and download the RIC70847 datasheet for full electrical specifications, radiation performance data, and ordering information. What Does DLA MIL-PRF-38535 Class V Qualification Actually Mean? MIL-PRF-38535 is the U.S. military performance specification governing the quality and reliability assurance requirements of integrated circuits for military and aerospace applications. It establishes a rigorous framework that manufacturers must follow â covering everything from design controls and wafer fabrication processes to screening, lot acceptance testing, and ongoing quality monitoring. Class V, also known as QML-V, represents the highest level of assurance within this specification. Devices qualified to Class V are designed and manufactured at DLA certified facilities under an approved Quality Management Plan, with every lot subject to extensive electrical testing, burn-in, and radiation screening. Infineon IR HiRel has decades of experience with MIL-PRF space requirements, making our portfolio flight-ready without the extra time and cost of additional qualification efforts. We prioritize supply continuity with die/wafer bank inventory, as required in typical high-reliability system lifespans. Key Features of the RIC70847 The RIC70847 is a fixed-frequency peak current mode synchronous buck controller with integrated gate drivers, built for harsh radiation environments. Key features include: Wide input voltage range supporting nominal 5 V and 12 V inputs, with an absolute maximum of 17.1 V Output voltage range of 0.6 V to 5.25 V, ideal for powering FPGA, ASIC, and DSP core rails Programmable switching frequency from 100 kHz to 2 MHz, set via a single resistor or synchronized to an external clock for multiphase designs Integrated half-bridge gate driver with 2 A source/sink capability, designed for radiation hardened logic-level FETs such as the IR HiRel rad hard R8 FET family, enabling a high degree of flexibility for system optimization by allowing designs to use optimal sized switches for unique program needs Optional load-line regulation (AVP/droop) to dynamically reduce output voltage under load, minimizing required output capacitance and improving transient response Radiation hardened up to 100 krad(Si) RLAT with SEE immunity characterized up to an LET of 81.8 MeV·cm²/mg Packaged in a hermetically sealed 24-lead flatpack, operating across the full military temperature range of -55°C to +125°C Built for the Modern Spacecraft The RIC70847's output voltage range and precision make it a natural fit for the core supply rails of space-grade FPGAs, microcontrollers, and ASICs â the digital processing engines at the center of communications payloads, Earth observation systems, and distributed satellite power architectures. The device is ideal for all point-of-load applications, including alongside devices such as AMDâs Versal⢠XC1902 and XC2302. Its fixed-frequency peak current mode control architecture delivers fast transient response and predictable loop behavior, while the integrated programmable soft-start ensures a smooth, monotonic output voltage ramp at power-up regardless of pre-bias conditions on the output rail. Combined with integrated fault protections and power good signaling, the RIC70847 provides the system-level reliability that flight programs demand. Get to Evaluating The RIC70847 is available now as a fully screened QML-V device under Government Part Number 5962R2320601VXA , as well as an engineering model ( RIC70847F ) for early-stage evaluation and design validation. Our RIC70847EVAL1 evaluation board is available now to help your team validate performance quickly and build confidence ahead of flight. All trademarks belong to their respective holders. Copy Link You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.