Using the dual transformer as shown in the figure below we would like to make a circuit in the ADP2441.
<Specifications> Vin: 24V (32V max) Vout1: 5V (100mA) Vout2: 3.3V (100mA)
Do you have any problems with the circuit configuration of the above?
The diagram you show is from LM5017 or similar products, which works at COT (constant on time) control.
To minimize ripple and stable operation, they propose three type circuit to generating the voltage ripple to the feedback node. You can find these info in the datasheet of LM5017. Regards to ADP2441, it works fixed frequency peak current mode. Don't need these circuit.
This converter is known as flybuck converter. I didn't see ADP2441 has major issues in this converter.
But as VOUT2 is not directly feedback, has cross regulation problem.
what is the purpose of the Rr, Cr, Cac network?
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