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DC-DC Converters for New Space and Low Earth Orbit (LEO) Applications
Featured Product - LE50-28
The LE50-28 is the only standard non-hybrid space-grade radiation-tolerant DC-DC power converter that utilizes surface-mount component construction, giving you flexibility and customization to fit specific applications and requirements. Complying with the Mil-Std-461, Mil-Std-883 and Mil-Std-202 standards, the LE50-28 family gives you the confidence to start with available off-the-shelf technology and quickly scale up development to reduce your risk and development time.
LE50-28 power converters are available in nine variants with single and triple outputs for optimal design configurability. The power converters have a companion EMI filter and let you easily design to scale and customize by choosing one to three outputs based on the voltage range needed for the end application. This series provides flexibility to up to four power converters to reach 200 Watts
The LE50-28 family offers space-grade radiation-tolerance with 50 Krad Total Ionizing Dose (TID) and Single-Event Effects (SEEs) latch-up immunity of 37 MeV·cm2/mg linear energy transfer.
Designed to serve 28V bus systems, LE50-28 isolated DC-DC power converters can be integrated with our PolarFire® FPGAs, microcontrollers (MCUs) and LX7720-RT motor control sensors for a complete electrical system solution.
Benefits of the LE50-28 Family
- 28V input
- Up to 50W of output in a low-profile solution
- High Mean Time Between Failures (MTBF) and exceptional efficiency
- Ability to parallel up to four units for 200W solution
- EMI compliant with additional filter and radiation-tolerant designs
- Single and triple outputs that are well-suited for New Space and LEO applications
- Switching regulators that use peak current mode-controlled single-ended forward converter topology with inherent single-event immunity
- Single-output versions that offer remote sense, output voltage adjust and parallel connection functions
Radiation-hardened DC-DC power converters—the only standard non-hybrid space-grade DC-DC power converters available—utilize surface-mount component construction, allowing flexibility and customization to fit specific applications and requirements.