The Ricoh R1110N331B-TR-F is a low-dropout (LDO) voltage regulator designed for portable applications requiring efficient power management. This device is part of Ricoh's R1110 series, which is known for its low supply current and high accuracy. The “-TR” suffix indicates tape and reel packaging for automated assembly, while the “-F” likely signifies that the component is lead-free and compliant with environmental regulations.

Applications

• Smartphones and Tablets: Provides stable voltage regulation to various components in mobile devices.
• Wearable Devices: Powers smartwatches, fitness trackers, and other wearable electronics.
• IoT Devices: Used in sensors, wireless modules, and other low-power Internet of Things applications.
• Portable Audio Players: Regulates voltage for audio components in portable music players.
• Wireless Communication Modules: Found in Bluetooth modules, Wi-Fi chips, and other wireless communication devices.

Features

• Low Dropout Voltage: Ensures stable output voltage even when the input voltage is close to the output voltage.
• Low Supply Current: Minimizes power consumption, extending battery life in portable applications.
• Overcurrent Protection: Protects the device and connected circuitry from damage due to excessive current.
• Thermal Shutdown Protection: Prevents overheating by automatically shutting down the regulator at a predefined temperature.
• Small Package: Compact SOT-23-5 package suitable for space-constrained applications.
• High Output Voltage Accuracy: Provides a precise and stable output voltage for reliable performance.

Benefits

• Extended Battery Life: Low power consumption maximizes the operational time of battery-powered devices.
• Enhanced System Reliability: Overcurrent and thermal protection features improve system robustness and prevent damage.
• Stable and Accurate Voltage: Provides a clean and consistent power supply for sensitive components, ensuring optimal performance.
• Compact Design: Small form factor enables integration into miniaturized electronic devices and applications.
• Environmentally Friendly: Lead-free construction complies with environmental regulations and reduces the environmental impact.

Additional Details

The R1110N331B-TR-F typically provides a fixed output voltage of 3.3V. It is designed to operate with an input voltage range generally between 1.6V and 5.5V. The output current capability is typically around 300mA. It is packaged in a small SOT-23-5 package for surface mount applications. The device includes a chip enable (CE) function, which allows the regulator to be turned on and off to further reduce power consumption. It is also designed for stable operation with ceramic capacitors, contributing to a smaller and more cost-effective solution. The thermal shutdown protection is activated at approximately 150°C to prevent damage due to overheating, ensuring the longevity and reliability of the device.