Abstract
This paper presents a Back-Biasing regulation module developed for the next-generation of 28nm UTBB FDSOI (Ultra-Thin Box and Body Fully Depleted Silicon On Insulator) IOT microcontroller products. The module enables both Reverse Back Biasing (RBB) and Forward Back Biasing (FBB) of a standard digital logic region with programmable voltage levels. Main design requirements and regulator load characteristics are analyzed. A description of the load model is also included. Silicon results from a circuit implementation included in i.MX7ULP™ low-power microcontroller are presented. The circuit occupies an area of 0.2mm2 with negligible power consumption compared to the total system.
Published Version
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