The R1122N81B-TR-FA is a voltage regulator IC from Ricoh designed to provide a stable and regulated output voltage for various electronic applications. This particular model is engineered for efficiency and reliability, making it suitable for devices requiring precise power management.

Applications

• Portable Electronic Devices: Used in smartphones, tablets, and other portable devices for voltage regulation.
• Power Supplies: Provides stable voltage in various power supply circuits.
• Battery Management Systems: Optimizes battery usage and ensures consistent voltage output.
• Industrial Control Systems: Ensures stable power for control and monitoring equipment.

Features

• High Output Voltage Accuracy: Provides precise and stable voltage output.
• Low Dropout Voltage: Operates efficiently even with minimal voltage difference.
• Overcurrent Protection: Safeguards the device and connected circuits from excessive current.
• Thermal Shutdown Protection: Prevents overheating by shutting down the regulator at high temperatures.
• Small Package Size: Allows for easy integration into compact electronic designs.

Benefits

• Consistent Performance: Maintains a stable voltage supply, ensuring reliable operation of connected devices.
• Enhanced Protection: Protects against voltage fluctuations and overcurrent conditions.
• Extended Battery Life: Efficient regulation minimizes power consumption, prolonging battery life.
• Simplified Integration: Easy to incorporate into various electronic circuits.

Technical Specifications

The R1122N81B-TR-FA operates within an input voltage range of 2.0V to 6.0V and delivers a fixed output voltage of 8.1V. The dropout voltage is approximately 200mV at a load current of 100mA. The overcurrent protection threshold is set around 300mA. It is housed in a SOT-23-5 package, and the operating temperature range is -40°C to +85°C.