Stable operation region of NJM17431 at VKA>VREF condition.

Stable operation region at VKA=VREF on datasheet is most severe condition for NJM17431 series. Then, characteristic on the datasheet is valid in the case of VKA>VREF. 

The value of Cout on characteristic is effective value of capacitor. It is necessary to consider DC bias dependance, temperature dependance etc.

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