The RP114K121D-TRB is a low voltage, low supply current CMOS-based LDO regulator manufactured by Ricoh. This regulator is designed with emphasis on low noise and high accuracy, making it suitable for sensitive analog circuits and battery-powered applications. It has built-in protection features such as overcurrent protection and thermal shutdown.

Applications

• Battery-Powered Devices: Ideal for smartphones, tablets, and portable audio players, providing stable voltage and minimizing power consumption.
• Wireless Communication Devices: Powers RF components in Bluetooth modules, Wi-Fi modules, and other wireless communication devices.
• Sensor Applications: Used to power sensors in IoT devices, environmental monitoring equipment, and medical devices.
• Audio Equipment: Provides a clean and stable voltage supply for audio amplifiers and other sensitive audio components.
• Wearable Electronics: Powers various components in smartwatches, fitness trackers, and other wearable devices.

Features

• Low Dropout Voltage: Ensures stable output voltage even when the input voltage is close to the output voltage.
• Fixed Output Voltage: Provides a precise and stable 1.2V output.
• Low Quiescent Current: Minimizes power consumption in standby mode, extending battery life.
• Overcurrent Protection: Protects the regulator and the load from damage due to excessive current draw.
• Thermal Shutdown Protection: Protects the regulator from overheating by shutting it down when the junction temperature exceeds a certain limit.
• Built-in Noise Reduction: Provides a clean and stable voltage supply for sensitive analog circuits.

Benefits

• Extended Battery Life: Low quiescent current and high efficiency contribute to longer battery life in portable devices.
• Stable Power Supply: Provides a clean and stable voltage supply for sensitive electronic components, improving system performance and reliability.
• Protection Against Damage: Overcurrent and thermal shutdown protection features protect the regulator and the load from damage.
• Improved Audio Quality: Low noise characteristics improve audio signal integrity in audio equipment.
• Compact Size: Small package size allows for use in space-constrained applications.

Additional Details

The RP114K121D-TRB is available in a small package, typically a DFN or SOT package. It is designed for low voltage operation and incorporates an enable pin for controlling the output. It operates with an input voltage range compatible with single-cell Li-ion batteries and other low voltage sources. The 'TRB' suffix likely indicates tape and reel packaging for automated assembly.