The R1114Q191B-TR-FA is a low-dropout (LDO) voltage regulator IC manufactured by Ricoh. It is designed to provide a stable and regulated output voltage of 1.9V from a higher input voltage. This makes it suitable for use in a wide range of electronic devices and systems where a stable 1.9V power supply is required.

Applications

• Powering Microcontrollers: Providing a stable 1.9V supply for reliable microcontroller operation.
• Portable Devices: Voltage regulation in smartphones, tablets, and other battery-powered devices.
• IoT Devices: Supplying regulated power to sensors, communication modules, and other IoT components.
• Wireless Communication Modules: Ensuring stable power for Bluetooth, Wi-Fi, and other wireless modules.
• Memory Devices: Powering low-voltage memory chips.

Features

• Fixed Output Voltage: Provides a precisely regulated 1.9V output.
• Low Dropout Voltage: Maintains regulation even with a small difference between input and output voltage.
• High Accuracy: Ensures the output voltage remains within a tight tolerance.
• Overcurrent Protection: Protects the IC and the load from damage due to excessive current.
• Thermal Shutdown Protection: Prevents overheating and potential damage to the IC.
• Low Quiescent Current: Minimizes power consumption when the load is light or absent.
• Small Package Size: Allows for compact circuit designs.

Benefits

• Stable Power Supply: Ensures reliable operation of electronic devices.
• Protection Against Damage: Overcurrent and thermal shutdown features prevent damage.
• Improved Efficiency: Low dropout voltage and quiescent current minimize power loss.
• Extended Battery Life: Low quiescent current contributes to longer battery life in portable applications.
• Compact Design: Small package allows for integration into space-constrained applications.
• Simplified Circuit Design: Fixed output voltage simplifies the design process.

Additional Details

The R1114Q191B-TR-FA is typically available in a small surface-mount package, such as DFN or SOT-23. The operating temperature range is usually specified as -40°C to +85°C. The 'TR-FA' suffix usually indicates tape and reel packaging for automated assembly. The 'B' likely indicates a specific revision of the IC. Refer to the manufacturer's datasheet for detailed specifications including input voltage range, output current capabilities, and package dimensions.