Space-Grade DC-DC Converters for Harsh Environments
Space-grade DC-DC converters are specialized power conversion devices that are best suited for the demanding environment of space. These converters are used to convert Direct Current (DC) from one voltage level to another for reliable and efficient power management. This makes them vital components in spacecraft, satellites and other space missions.
Our radiation-hardened space-grade DC-DC converters are designed to withstand high levels of ionizing radiation prevalent in space, which can otherwise cause malfunctions or degradation in electronic components. Radiation-hardened designs ensure long-term reliability and functionality.
These converters are the building blocks of satellite power system architecture, with the MH8565A Point-of-Load (POL) switching regulator, the SGR117 and MHL117 linear regulators, and the MIC69303RT Low Dropout (LDO) regulator powering our PolarFire® FPGAs, microcontrollers (MCUs) and motor control sensors for a complete space solution. The space-grade DC-DC converters are indispensable for the dependable operation of space missions, providing stable and efficient power conversion in one of the most challenging environments.
Key Features of Our Space-Grade DC-DC Converters
Radiation Tolerance
Our DC-DC converters are designed to withstand high levels of radiation, including Total Ionizing Dose (TID) and Single Event Effects (SEE), to provide reliable operation in the presence of cosmic rays and solar radiation.
High Reliability and Longevity
This is essential for mission-critical operations that can last years or even decades. These DC-DC converters also allow for redundancy and fault tolerance to enable continuous operation even if one component fails.
Thermal Management
Our space-grade DC-DC converters are designed to function efficiently across a wide range of temperatures, from the extreme cold of space to the heat generated by electronic components.
Efficiency and Power Density
These features are also crucial, as space missions often have limited power available. High-efficiency converters maximize the use of available energy.
Compact and Lightweight Design
This is critical for space applications where every gram counts. Reducing weight can significantly lower launch costs and improve the efficiency of the spacecraft. Additionally, lighter components can enhance the overall performance and longevity of the mission by allowing for more payload capacity and better fuel economy.
Electromagnetic Compatibility (EMC)
These converters are designed to minimize electromagnetic interference so that they do not disrupt other sensitive electronic systems onboard; this enables voltage regulation and stability, as stable and regulated voltage outputs are essential for the proper functioning of sensitive electronic equipment.
Electrical Isolation
Our customizable space-grade DC-DC converters offer electrical isolation between input and output to protect sensitive components from potential faults and noise and can often be tailored to meet the specific power requirements of different space missions, whether for satellites, rovers or space stations.
Environmental Robustness
These converters are designed to withstand the mechanical stresses of launch and operation in space, including vibrations and shocks.
Product Categories
Radiation-Hardened DC-DC Converters
The SA series of DC-DC converters is available in both single- and triple-output configurations. These devices are specifically designed and qualified to withstand the demanding conditions of space, including characterization for TID and SEE. Operating at a fixed frequency of 220 kHz, the SA family of converters can also be externally synchronized with other frequency sources.
Radiation-Tolerant DC-DC Converters
The Low Earth Orbit (LEO) market is rapidly expanding as both private and public entities venture into New Space. This exploration necessitates a wide range of technologies, from 5G communication and cube satellites to IoT applications. Consequently, there is a growing demand for standard, reliable, cost-effective and configurable space-grade solutions. To address this market need, we have developed the radiation-tolerant LE50-28 series of isolated DC-DC converters. These off-the-shelf 50W power converters are available in nine variants, offering single and triple outputs that range from 3.3V to 28V.
