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How to change the switching frequency of the converter's PSPICE model?

Part Number: TPS62913


Tool/software:

Hello,

Despite the model description stating that the model should include switching frequency setting, I have not been able to change the switching frequency of the converter. To my knowledge, the task should be as simple as connecting the S-CONF pin to either GND or VIN to select between the 1 MHz and 2.2 MHz switching frequency. Am I missing something here?

I'm trying to test the converter with 2.2 MHz switching frequency with the configuration below (hopefully it's visible). I'm expecting to see a switching period of around 450 ns as per the switching frequency.

However, the simulation shows that despite having the S-CONF pin tied to VIN, the period of the output ripple is around 1 us, indicating that the switching frequency is in fact 1 MHz, and not 2.2 MHz 

Some insight to why this is not working would be highly welcome!