Radiation Hardened Load Switches Simplify Redundancy and Increase Reliability in Space Grade Power Systems

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  • Author: Allan Robinson, Oscar Mansilla
In space applications there is always a need to prevent against single-point of failures. Elimination of single point of failures is even more critical in power distribution systems where propagation of a failure could lead to loss of functionality, or even worse, complete destruction of the payload or satellite bus. This white paper will introduce the new Renesas ISL7x061SEH (PMOS) and ISL7x062SEH (NMOS) radiation hardened load switch ICs, and discuss using the load switches with the ISL70001ASEH radiation hardened 6A synchronous buck POL regulator ICs to implement POL system redundancy.
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