The STMicroelectronics STM6720TGWB6F is a multi-voltage supervisor that monitors three supply rails with thresholds at 1.11 V, 3.075 V, and an adjustable third channel. The active-low, push-pull reset output holds the system in reset for a minimum of 140 ms after all rails cross their thresholds. Housed in a SOT-23-6, it fits tight mixed-voltage designs — FPGA core + I/O banks, multi-rail MCU boards, or any system that needs sequenced power-up without a separate supervisor IC per rail.
Three monitored voltages cover the typical split-rail pattern: a 1.11 V threshold, a 3.075 V threshold, and an adjustable channel for any intermediate rail.