The Ricoh R1110N301B-TR-F is a low-dropout (LDO) voltage regulator designed for portable applications. It's part of Ricoh's R1110 series, known for its low supply current and high accuracy. The "-TR" suffix indicates tape and reel packaging for automated assembly, and "-F" likely indicates a specific environmental compliance, such as being lead-free.

Applications

• Smartphones and Tablets: For stable voltage regulation in various mobile device circuits.
• Wearable Devices: Powering smartwatches, fitness trackers, and other wearables.
• IoT Devices: Powering sensors, communication modules, and other components in IoT systems.
• Portable Medical Devices: Used in devices like blood glucose meters and portable ECG monitors.
• Wireless Communication Devices: Voltage regulation for Bluetooth modules, Wi-Fi chips, and other wireless components.

Features

• Low Dropout Voltage: Maintains a stable output voltage even when the input voltage is close to the output.
• Low Supply Current: Minimizes power consumption, extending battery life.
• Overcurrent Protection: Protects the device and downstream circuitry from damage due to excessive current.
• Thermal Shutdown Protection: Shuts down the regulator to prevent damage from overheating.
• Small Package: Compact SOT-23-5 package for space-constrained applications.
• High Output Voltage Accuracy: Provides a precise and stable output voltage.

Benefits

• Extended Battery Life: Low power consumption maximizes the operating time of battery-powered devices.
• Enhanced System Reliability: Overcurrent and thermal protection features improve system robustness.
• Stable and Accurate Voltage: Ensures consistent performance of connected components.
• Compact Design: Small form factor enables integration into miniaturized electronic devices.
• Simplified Manufacturing: Tape and reel packaging allows for efficient automated assembly.

Additional Details

The R1110N301B-TR-F typically offers a fixed output voltage of 3.0V. It operates with an input voltage range of approximately 1.6V to 5.5V. The output current capability is generally around 300mA. The SOT-23-5 package makes it easy to integrate into small circuit boards. It includes a chip enable (CE) function, allowing the device to be turned on and off, reducing power consumption further when not in use. It's also designed for stable operation with ceramic capacitors, contributing to a smaller and more cost-effective overall solution. The thermal shutdown feature helps prevent damage from overheating by automatically shutting down the regulator at a certain temperature threshold.