The LOWPOWER LP3809-263B3F is a three-pin SOT23-3 RoHS (Restriction of Hazardous Substances Directive) compliant supervisory circuit with system reset and power-on reset capabilities. It is designed to maintain proper system operation during low voltage, undervoltage, and overvoltage conditions in applications such as power supply sequencing and reset in battery operated systems. It offers multiple reset/power-on reset thresholds, an active-high reset output, an undervoltage lockout feature, and adjustable reset/power-on reset delay times. It also features switch-mode control as well as an onboard MOSFET, which allows for higher efficiency than traditional linear regulators. It is also compliant with the RoHS Directive, making it a cost-effective, energy efficient solution for a variety of power management and system reset applications.