The R1141Q281D-TR-F is a voltage regulator IC manufactured by Ricoh. It is a low-dropout (LDO) regulator designed to provide a stable output voltage even when the input voltage is close to the desired output. This particular model provides a fixed output voltage of 2.8V. The R1141Q series is known for its small size, low current consumption, and high accuracy, making it suitable for a wide range of portable and battery-powered applications.

Applications

• Smartphones and mobile devices: Power management for various internal circuits.
• Wearable devices: Providing stable voltage for microcontrollers and sensors in smartwatches and fitness trackers.
• IoT (Internet of Things) devices: Powering sensors and communication modules in low-power IoT applications.
• Wireless communication modules: Voltage regulation for RF transceivers and other wireless components.
• Portable medical devices: Power management for sensitive electronic components.

Features

• Fixed Output Voltage: 2.8V.
• Low Dropout Voltage: Ensures stable output even with a small difference between input and output voltage.
• Low Current Consumption: Contributes to extended battery life in portable devices.
• High Output Voltage Accuracy: Provides a precise and reliable voltage supply.
• Small Package: Suitable for compact designs.
• Overcurrent Protection: Protects the regulator and connected circuitry from excessive current draw.
• Thermal Shutdown Protection: Prevents damage from overheating.

Benefits

• Stable Power Supply: Provides a consistent and reliable voltage for sensitive electronic components, ensuring proper operation.
• Extended Battery Life: Low current consumption helps maximize battery life in portable devices.
• Compact Design: Small package size allows for integration into space-constrained applications.
• Protection Features: Overcurrent and thermal shutdown protection enhance the reliability and lifespan of the device.
• Simplified Design: Fixed output voltage eliminates the need for external components for voltage adjustment, simplifying circuit design.

Additional Details

The R1141Q281D-TR-F is typically available in a small SOT-23 or similar surface-mount package. It is designed for use with ceramic capacitors, which provide stable operation and low noise. The operating temperature range is typically -40°C to +85°C. The input voltage range typically allows for operation from 1.6V to 5.5V, providing design flexibility. The device is RoHS compliant, meaning it is free from hazardous substances.