hashkafah philosophy - Is there a source where Emuna and Bitachon are described as separate ideas?

In the sefer Emuna UBitachon, the Chazon Ish popularized the idea that Emuna and Bitachon are really two parts of one idea, one being the belief in the idea, and one being the idea believed in.

Is there anyone past or present who explicitly says the opposite, that Emuna and Bitachon are rather two completely separate ideas?