SCM-1609L3.3-8N1R

Overview

The East Electronics SCM-1609L3.3-8N1R is a fixed-output low-dropout (LDO) linear voltage regulator designed to provide a stable 3.3V DC output from higher input voltages. This component utilizes a compact SOT-23 surface-mount package, facilitating integration into space-constrained printed circuit boards. It incorporates internal protection mechanisms including thermal shutdown and current limiting to ensure reliable operation under fault conditions. The device is engineered for applications requiring low noise and high power supply rejection ratio (PSRR), making it suitable for sensitive analog and digital circuits in portable consumer electronics.

Feature Summary

• Provides a precise fixed 3.3V regulated output voltage
• Incorporates built-in thermal overload and short-circuit protection
• Utilizes a compact SOT-23 surface-mount package for efficient board space utilization

Applications

• Portable battery-powered electronic devices
• Low-noise power regulation for sensor interfaces
• Voltage regulation in embedded microcontroller systems

Procurement Notes

Verify the specific manufacturer datasheet for the exact electrical characteristics, as specifications may vary by production batch. Confirm that the SOT-23 footprint matches your PCB design requirements. Ensure compatibility with your system's input voltage range and maximum load current demands before finalizing procurement decisions.

Selection Notes

Select this regulator when a stable 3.3V supply is required for low-power applications. Consider its dropout voltage characteristics relative to your minimum input voltage. Evaluate the thermal performance based on expected load currents and ambient operating temperatures to ensure adequate heat dissipation within the small package constraints.

Part Context

This component belongs to the family of standard LDO regulators used for step-down voltage conversion. It serves as a critical power management element in modern electronics, replacing older linear regulators with improved efficiency and smaller form factors. Its design focuses on simplicity and reliability for general-purpose voltage regulation tasks.

Replacement Considerations

Consult official manufacturer cross-reference lists for verified direct replacements. Ensure any substitute part maintains identical pinout configuration, output voltage tolerance, and package dimensions to guarantee mechanical and electrical compatibility without redesigning the host circuit.