Quote:
Originally Posted by David G4EBT
I think that rippe current is rarely considered and rarely given by makers, which is why I tend to stick to Rubycon electrolytics from Farnel, because they're 105C and have high ripple ratings despite their compact physical size.
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That's useful info, David. Thanks.
On closer inspection, the chip switches on even faster than I thought, in less than 10nS, pushing at least 2A pulses, in my case at around 300KHz. It would be unsurprising if even 1cm of lead length on the cap leads was a parasitic inductor. But sourcing a suitably robust replacement seems like a wise plan.
I might put a bi-directional TVS diode across the supply rail.