The R1114Q281B-TR-F is a low-dropout (LDO) voltage regulator IC manufactured by Ricoh. It is designed to provide a stable and regulated 2.8V output voltage from a higher input voltage. Its low dropout voltage characteristic enables efficient operation even when the input voltage is only slightly higher than the desired output voltage. This makes it suitable for use in a variety of electronic devices and systems where a consistent 2.8V power supply is crucial.

Applications

• Powering Microcontrollers: Providing a stable and clean 2.8V power supply for reliable microcontroller operation.
• Portable Electronics: Used in smartphones, tablets, wearables, and other battery-powered devices.
• IoT Devices: Regulating power for sensors, communication modules, and other low-power IoT components.
• Wireless Communication Modules: Ensuring a stable 2.8V supply for Bluetooth, Wi-Fi, and other wireless modules.
• Memory Devices: Powering low-voltage memory chips that require a 2.8V supply voltage.

Features

• Fixed Output Voltage: Provides a precisely regulated 2.8V output voltage.
• Low Dropout Voltage: Maintains regulation even with a small difference between input and output voltage, improving efficiency.
• High Accuracy: Ensures the output voltage remains within tight tolerances.
• Overcurrent Protection: Protects the IC and the load from damage due to excessive current flow.
• Thermal Shutdown Protection: Prevents the IC from overheating and potentially failing.
• Low Quiescent Current: Minimizes power consumption when the load is light or absent, which extends battery life in portable applications.
• Small Package Size: Allows for compact circuit designs and integration into small devices.

Benefits

• Stable and Reliable Power: Ensures consistent performance of electronic devices by providing a stable 2.8V supply.
• Protection Against Damage: Overcurrent and thermal shutdown features safeguard the IC and connected components from damage.
• Improved Power Efficiency: Low dropout voltage and quiescent current minimize power losses, leading to better energy efficiency.
• Extended Battery Life: Low power consumption contributes to longer battery life in battery-powered applications.
• Compact Design: Small package size facilitates integration into space-constrained applications.
• Simplified Circuit Design: Fixed output voltage simplifies the design process and reduces the number of required external components.

Additional Details

The R1114Q281B-TR-F is typically available in a small surface-mount package such as DFN or SOT-23. The operating temperature range is commonly specified as -40°C to +85°C. The 'TR-F' suffix generally indicates tape and reel packaging suitable for automated assembly processes. Consult the manufacturer's datasheet for detailed specifications, including input voltage range, output current capabilities, and package dimensions. The 'B' likely signifies a specific revision or variation of the IC.