I am designing a circuit with the LTC3569.
I want to operate it as 3 independent buck converters (1.2A, 0.6A, 0.6A). I do not have any digital means of controlling the EN pins to set the reference voltages for each converter -- and am fine using the default value.
1. Is the default value 0.8V?
2. What should I tie the EN pins to for the behavior described above? I do NOT want slaved outputs (which happen to be the only examples in the data sheet). If I can't pull them to SVin, I assume tying them to SGND would disable that particular buck. Is there some intermediate voltage? Should they be floating? Can I sequence them? Meaning, tie EN1 to SVin, then EN2 to OUT1, and EN3 to OUT2?
Thanks in advance for your help!