I am working with a team of EEs on a HVPS for a NASA CubeSat and we would like to use the LTC3721-1. Before we use it, we were hoping we could have a couple of questions answered.
1. How susceptible is the chip to space radiation?
2. How does it behave in a high vacuum environment like space?
3. What mode does it operate in for switching at low loads? To be more specific, we have a capacitor-diode multiplier into a low current load that's 50uA. Is it plain PWM switching or does it change to a different switching mode at lower load?