3.3V Regulator

Question

Hello, 
 Can I have the references of the 3.3V regulator to be used in a direct connection between the LTC9101-1 and LTC9102? or other information.

Thanks.

EHorsma · Accepted Answer

Hello, 
 The evaluation board uses LTC3639EMSE, a 150Vin / 100mA synchronous buck regulator from ADI. 
 The 3.3V regulator should be rated for at least 80V to handle input transients. The LTC9101-1's VDD max current draw is 60mA, and each LTC9102/LTC9103's CAP3 max current draw is 6.6mA. This means a system with one LTC9101-1 and four LTC9102/LTC9103s may draw a max of 86.4mA from a shared 3.3V supply. 
 
 Best Regards, 
 Eric)

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3.3V Regulator