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Redundant Power Supply with LTC3765 + LTC3766

Category: Hardware
Product Number: LTC3766

We are designing a modular power supply based on the LTC3765/LTC3766 chipset.
We also need to have (optional) redundancy with a second or even third power supply connected together at the output so my question is if the internal "Synchronous MOSFET Reverse Current Limit" and "Remote Sense Reverse Protection" is enough reverse current protection or if an additional ideal diode circuit on each output is necessary.
Are any aditional measures necessary to have a reliable solution with paralleled LTC3765/LTC3766s. The power supplys should be able to be unpowered or deactivated on the primary side, inserted into an already powered load and removed under load.

  • An additional ideal diode circuit on each output is necessary for redundancy. Regarding additional measures, a share scheme such as share bus for low output voltages or simpler, droop share for higher bus voltages is often employed to balance load and response. 

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