Welcome to the MPS Technical Forum! After reviewing both operation conditions, I don’t see an issue with using these modules in either way as you described. For more information on the registers for these devices, please see their respective Register Map sections in the datasheets.
The MTP configuration is a special feature where the customer can customize the default settings of the module themselves through PMBus. This is the alternative to OTP where custom settings would have to be set by the MPS factory before shipping because OTP does not allow customers to change the defaults themselves.
For example, on Pg. 3 of the MPM82504 datasheet, you will see the three versions of the module available to customers. On Pg. 47, you will see the default settings for the -0000 and -0001 versions. What differentiates MTP from OTP here is that the customer can still use PMBus to change the default settings of these versions. They simply come preloaded with the settings listed on Pg. 47. The -XXXX version represents a unique suffix code for a custom version that our factory creates for customers after they give the desired defaults. This way the customer bypasses having to program the parts themselves, but the option is still available because it’s an MTP device.
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