Apogee Semiconductor proudly announces the ARPS1020A5 and ARPS1050A5, a radiation-hardened power switch family engineered to bring deterministic protection, fault containment, and continuous health telemetry to spacecraft and other mission-critical power architectures. With two optimized variants, the ARPS power switch family cleanly spans key spacecraft rails.
ARPS1020A5 supports standard 3.3 V, 5 V, and 12 V power rails, while ARPS1050A5 supports 28 V spacecraft buses, giving architects a consistent protection and telemetry strategy from regulated point-of-load domains through primary distribution. Designed as compact, high-side protected switches, these devices combine programmable over-current protection, short circuit protection, over-temperature protection, adjustable soft-start, state of switch reporting, and current telemetry to enable system-level fault management without compromising SWaP-C.
“With the release of ARPS1020A5 and ARPS1050A5, we’re continuing to expand the foundation established by our AxIO16 product releases,” said Mark Hamlyn, General Manager, Apogee Semiconductor. “The ARPS1020/ARPS1050 is the next step in executing our strategic roadmap and extending system-level fault management into power distribution.”
Empowering COTS Adoption Through a Scalable, Roadmap-Driven System Solution
The ARPS family represents the next milestone in Apogee’s strategic roadmap to deliver modular, fault-managed building blocks that enable COTS-based spacecraft architecture. When Paired with Apogee’s recently released AxIO16 family of radiation-hardened I/O expanders, ARPS devices form a cohesive system-level solution for modern space systems.
Key Radiation-Hardened Facts
- ARPS1020A5: 20 V at 8 A (23 mΩ RDSON)
- ARPS1050A5: 50 V at 4 A (57 mΩ RDSON)
- Industry’s smallest eFuse: 3 mm x 5 mm, 24-pin QFN
- Guaranteed break-before-make operation
- Over-current, short-circuit, and thermal protection
- Current sense output for external telemetry
- Fault output and state of switch output pins for system health monitoring
- True current sharing in paralleled implementations
- Radiation tolerant for LEO and GEO missions
Ordering & Availability
ARPS1020/ARPS1050 is now available for ordering online at ARPS1050A5/ARPS1020A5 | Apogee Semiconductor
Connect with our applications team at support@apogeesemi.com for support and design guidance.
About Apogee Semiconductor
Apogee Semiconductor is a leading provider of radiation-hardened semiconductor solutions for space, aerospace, and defense applications. The company develops high-performance microelectronics designed to withstand extreme environments, enabling mission-critical systems in the most challenging conditions. The company enables the use of COTS-based architecture through fault containment, fault management, and system-level observability across control, sensing, and power distribution.