The Maxim Integrated MAX6833HXRD3 is a simple reset/power-on reset IC that monitors a single voltage rail and asserts a reset signal when the supply drops below a 1.575V threshold. The reset output is active high and uses a push-pull, totem-pole stage — no external pull-up required. It comes in a surface-mount SC-70-3 package (also known as SOT-323). Typical use cases include supervising low-voltage core supplies in MCU, DSP, or FPGA systems where a precise reset is needed during power-up, brownout, or supply transients.
The 1.575V threshold monitors a single voltage rail. It triggers a reset when the rail dips below that level, with a minimum reset timeout of 140 ms to allow the supply to stabilise before the system starts.
Active-high reset — confirm your system's reset polarity
This part asserts an active-high RESET signal. Many microcontrollers and SoCs expect an active-low reset input. If your processor uses active-low, the MAX6833HXRD3 cannot drive it directly without an inversion stage. Check the reset pin polarity on your target device before committing the BOM line.