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UCC38C44: Why is the FB short-circuited to ground in Figure 8-1?

Part Number: UCC38C44

Tool/software:

As the title suggests, why is the feedback (FB) pin shorted to ground? It is supposed to be the input of the Error Amplifier. Now the loop is fed into the output of the Error Amplifier (COMP pin).

Regards,
Jacco