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LT8310 isolated supply

Hello everyone,

I am using the LT8310 and the LT4430 for an isolated 12V power supply. Input voltage is 24V. My setup is very similar to the one on page 33 in the datasheet, except for the transformer ratio - here I am using 1:1. With no load applied the output voltage is regulated fine to the desired 12V. When I start to apply a load e.g. 13.5 Ohms the output voltage drops to about 8.9V. Has anyone an idea what could cause this voltage drop?

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