Voltage supervisor for 1.8 V rails
The Analog Devices MAX6834VXRD3+T is a single-channel voltage supervisor that monitors a 1.665 V threshold and asserts a reset output when the supply drops below that level. It is a Simple Reset/Power-On Reset IC with an active-low, open-drain output, packaged in a 3-lead SC-70.
140 ms minimum reset timeout
After the monitored voltage returns above the threshold, the reset output remains asserted for a minimum of 140 ms. This timeout allows the power supply and oscillator to stabilize before the processor or FPGA is released from reset. It is long enough to cover most power-up settling times without adding unnecessary delay to the startup sequence.
Active lifecycle, SC-70-3 footprint
The MAX6834VXRD3+T is listed as Active in production, with ROHS3 compliance. The SC-70-3 package occupies minimal board area, making it suitable for dense PCB layouts where a supervisor is needed without consuming space.