RS803-3.08YSF3

Overview

The RS803-3.08YSF3 is a supply voltage supervisor manufactured by Runic Technology, designed for monitoring power rails in electronic systems. It features an open-drain output type and operates within a working voltage range of 3.21V to 5.5V. The device triggers a reset signal when the monitored voltage drops below a specific threshold of 3.08V. The reset output is active low, ensuring compatibility with standard digital logic interfaces. Packaged in a compact SOT-23-3 form factor, it is suitable for space-constrained applications requiring reliable power management.

Feature Summary

• Provides continuous monitoring of supply voltage levels to detect under-voltage conditions
• Generates a reset signal via an open-drain output interface for system control
• Operates with low supply current consumption suitable for portable equipment

Applications

• Portable electronic devices requiring battery voltage supervision
• Embedded systems needing reliable power-on reset functionality
• Microcontroller-based circuits requiring brown-out protection

Procurement Notes

Verify the exact suffix YSF3 against manufacturer documentation to confirm package type and temperature grade. Ensure the threshold voltage matches the system requirements. Check RoHS compliance status if required by project specifications. Confirm availability through authorized distributors as supply chain conditions may vary.

Selection Notes

Select this component when a fixed 3.08V threshold is required for system reset. Consider the open-drain output requirement for pull-up resistor implementation. Evaluate the SOT-23-3 package size against board space constraints. Compare operating voltage range with the target application's power supply characteristics.

Part Context

This part belongs to the RS803 series of supply voltage supervisors from Runic Technology. The series includes various threshold voltages and packages. The RS803 series is designed for general-purpose power monitoring in consumer and industrial electronics. It complements other Runic products like LDO regulators and operational amplifiers in complete system solutions.

Replacement Considerations

Check for direct pin-to-pin replacements with identical threshold voltages and output types. Verify that alternative supervisors support the same operating voltage range and package dimensions. Ensure functional compatibility regarding reset delay times and hysteresis if specified in original design.