The R3111Q201C-TR is a voltage regulator manufactured by Ricoh. It's a high-accuracy voltage regulator IC with a low supply current and a small SOT-23-5 package, making it suitable for a variety of portable and battery-powered applications. The IC incorporates a short-circuit protection circuit and an auto-discharge function.

Applications:

• Power source for microcomputers
• Power source for real-time clocks (RTCs)
• Power source for cameras, video recorders, and camcorders
• Power source for portable communication devices
• Power source for constant-voltage power supplies

Features:

• High Input Voltage: Up to 6.5V.
• Low Supply Current: Typically 95μA.
• High-Accuracy Output Voltage: ±0.8%
• Output Voltage Temperature Coefficient: Typ. ±30 ppm/°C
• Internal Short-Circuit Protection: Prevents damage in case of output short.
• Auto-Discharge Function: Quickly discharges the output capacitor when the chip is disabled.
• Small Package: SOT-23-5
• Operating Temperature Range: -40°C to 85°C

Benefits:

• Extended Battery Life: Low supply current minimizes power consumption, leading to longer battery life in portable devices.
• Precise Voltage Regulation: High accuracy ensures stable and reliable operation of connected devices.
• Robust Protection: Short-circuit protection safeguards the regulator and other components from damage.
• Simplified System Design: The integrated auto-discharge function simplifies external circuitry.
• Compact Footprint: The small SOT-23-5 package saves valuable board space.

Additional Details:

The R3111Q201C-TR has a fixed output voltage of 2.0V. The auto-discharge function ensures that the output capacitor is quickly discharged when the IC is turned off, preventing unexpected behavior in the connected circuitry. This regulator is designed to provide a stable and reliable power supply in demanding environments.