Used as a noun or な-adjective for the smallest amount, lowest level, or a deliberately minimal style. It has a katakana, somewhat business/design-like feel compared with native expressions such as 最小限 or 最低限.
Keep expenses to a minimum.
ミニマムな機能だけを残したデザインだ。
It is a design that keeps only the minimal functions.
この商品の発注ミニマムは百個です。
The minimum order for this product is one hundred units.
She likes furniture with a minimal design.
I try to keep my travel luggage to a minimum.
Lately I've been trying to live minimally.