The SIMO DC-DC converter offers a high-efficient power conversion in combination with a low BOM/cost. It is part of a power amplifier (PA) envelope tracking system for use in battery-operated mobile devices. This ASIC provides simultaneously multiple outputs above and below the input voltage.
![Single Inductor Multiple Output (SIMO) DC-DC converter for PA envelope tracking in mobile devices](https://www.icsense.com/wp-content/uploads/2016/01/simo-blurred2.png)