The R1114N181B-TR-FA is a voltage regulator IC manufactured by Ricoh. It is part of the R1114 series, known for its low supply current and high accuracy. This particular variant offers a fixed output voltage of 1.8V.

Applications

• Power management in portable devices: Smartphones, tablets, and other battery-powered electronics rely on efficient voltage regulators like the R1114N181B-TR-FA.
• Microcontroller power supplies: Providing a stable and regulated voltage source for microcontrollers and other digital circuits.
• Wireless communication devices: Used in Bluetooth modules, Wi-Fi devices, and other wireless transceivers to ensure reliable operation.
• Wearable electronics: Smartwatches, fitness trackers, and other wearable devices benefit from the IC's small size and low power consumption.
• IoT (Internet of Things) devices: Powering sensors, actuators, and communication modules in IoT applications.

Features

• Low Supply Current: Minimizes power consumption, extending battery life in portable applications.
• High Output Voltage Accuracy: Ensures stable and reliable voltage regulation.
• Small Package: Available in compact packages suitable for space-constrained applications.
• Overcurrent Protection: Protects the IC and connected circuitry from damage due to excessive current draw.
• Short-Circuit Protection: Provides protection against short circuits, preventing damage to the IC and the power supply.
• Thermal Shutdown Protection: Protects the IC from overheating by shutting down the output when the junction temperature exceeds a certain limit.

Benefits

• Extended Battery Life: The low supply current contributes to longer battery life in portable devices.
• Improved System Reliability: The high output voltage accuracy ensures stable operation of connected circuits.
• Reduced Board Space: The small package size allows for compact designs.
• Enhanced System Protection: Overcurrent, short-circuit, and thermal shutdown protection features prevent damage to the IC and connected components.
• Simplified Design: Integrated protection features simplify the design process and reduce the need for external components.

Additional Details

The R1114N181B-TR-FA is typically supplied in a small SOT-23-5 or similar surface-mount package. Its input voltage range is typically between 2.0V and 6.0V, and it provides a fixed output voltage of 1.8V. The IC also features a chip enable function, which allows the output to be turned on and off for power saving purposes. The operating temperature range is typically -40°C to +85°C.