The FM803RS3X is a simple reset/power-on reset integrated circuit (IC) that falls under the category of power management (PMIC) supervisors. It is designed to monitor a single voltage and provide an active low reset signal. The reset timeout is set to a minimum of 140ms. The voltage threshold for triggering the reset is 2.63V. The FM803RS3X is packaged in TO-236-3, SC-59, SOT-23-3 package, which is surface mountable. This IC is offered by Fairchild/ON Semiconductor and is currently obsolete. It is suitable for applications where a reliable power-on reset signal is required to ensure proper system initialization.