The Ricoh R1110N251B-TR is a CMOS-based voltage regulator IC that delivers stable voltage with low dropout and low supply current. It is primarily designed for portable applications and battery-powered devices where energy efficiency is crucial. The “-TR” suffix signifies that the product is provided in tape and reel packaging for efficient automated assembly.

Applications

• Smartphones and Tablets: Provides stable power to various components in mobile devices.
• Wearable Technology: Suitable for smartwatches, fitness trackers, and other wearable gadgets.
• Wireless Sensors: Ideal for powering sensors and communication modules in wireless sensor networks.
• Portable Medical Devices: Used in portable health monitoring equipment and diagnostic tools.
• Backup Power Systems: Can be integrated into backup power solutions for critical applications.

Features

• Low Dropout Voltage: Maintains stable output even with a small difference between input and output voltages.
• Low Supply Current: Minimizes power consumption, crucial for extending battery life.
• Overcurrent Protection: Safeguards the IC and other components from potential damage due to excessive current.
• Thermal Shutdown: Prevents overheating by automatically shutting down the regulator at a critical temperature.
• Small Package: Compact packaging makes it suitable for space-constrained applications.
• High Output Voltage Accuracy: Ensures a precise and reliable output voltage.

Benefits

• Longer Battery Life: Reduced power consumption extends the operational life of battery-powered devices.
• Enhanced Reliability: Built-in protections enhance the robustness and lifespan of the electronic system.
• Stable Performance: Precise output voltage maintains consistent and dependable operation of connected components.
• Compact Design: Small form factor allows for integration into densely populated circuit boards.
• Simplified Integration: Easy to use and implement in various electronic designs.

Additional Details

The R1110N251B-TR typically provides a fixed output voltage of 2.5V. It can operate with a wide input voltage range, generally from 1.6V to 5.5V. The output current capability typically reaches up to 300mA. It comes in a SOT-23-5 package. A chip enable function allows for turning the regulator on and off, saving power when the device is not in use. Stable operation is achieved with ceramic capacitors, leading to reduced overall solution size and cost. The thermal shutdown protection threshold is typically set around 150°C to prevent damage from overheating.