RS809-3.08YSF3

Overview

The RS809-3.08YSF3 is a supply voltage supervisor manufactured by Runic Technology, designed to monitor power rails and generate reset signals for digital systems. It operates within an input voltage range of 1.0V to 5.5V and features low power consumption with a maximum quiescent current of 40µA. The device utilizes a SOT-23-3 package and provides a push-pull or totem pole output configuration for reliable interface with microcontrollers and logic circuits.

Feature Summary

• Monitors supply voltage levels to ensure system stability
• Generates active reset signals upon detecting under-voltage conditions
• Operates with low quiescent current for energy efficiency

Applications

• Microcontroller system supervision
• Digital logic circuit protection
• Battery-powered device monitoring

Procurement Notes

Verify the specific suffix YSF3 against the manufacturer's official datasheet to confirm pinout compatibility and electrical specifications. Ensure the sourcing channel provides original components from Jiangsu Runic Technology Co., Ltd. to avoid counterfeit parts that may exhibit incorrect threshold voltages or excessive leakage currents.

Selection Notes

Select this component when a single-channel supervisor with a fixed 3.08V threshold is required for systems operating between 1.0V and 5.5V. Consider the SOT-23-3 package constraints for board space and verify that the 40µA maximum quiescent current aligns with the application's power budget requirements.

Part Context

This part belongs to the RS809 series of voltage supervisors from Runic Technology, which focuses on high-performance analog and mixed-signal ICs. The series is designed for applications requiring reliable power management in compact form factors, serving as a critical component for maintaining system integrity during power transitions.

Replacement Considerations

Consult official substitution lists from Runic Technology for direct equivalents. Verify that any alternative supervisor matches the 3.08V threshold, SOT-23-3 footprint, and output drive capability to ensure functional compatibility without redesigning the PCB layout.