TPS73633 parallel connection

Expert 1070 points

Hi Darwin,

I am sorry to insist but I would like to check on this:

The reazon why I want to use 2 LDOs in parallel configuration it is not to increase the current. It's is a safety issue.

My idea is to connect in parallel two NMOS LDOs TPS73633 with different battery input. If any battery fails, the regulated output should be fine because the other battery input is still working. No current will flow back to the broken battery because the LDOs are NMOS.

Moreover, the load current is 1/2 of the output current of a single LDO, so in case the current is not balanced, the LDO that has to deliver all the current is able to do it.

Do you see any problem in this configuration?

Thanks a lot in advance.

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