The R1141Q261D-TR is a voltage regulator IC manufactured by Ricoh. It is a low-dropout (LDO) regulator designed to provide a stable and accurate output voltage even when the input voltage is close to the output voltage. This characteristic is especially useful in battery-powered applications where the battery voltage decreases over time.

Applications

• Battery-Powered Devices: Smartphones, tablets, wearables, and other portable electronics.
• Power Management Circuits: Regulating voltage for microcontrollers, sensors, and other sensitive components.
• Wireless Communication Devices: Bluetooth modules, Wi-Fi modules, and other RF devices.
• Portable Medical Devices: Glucose meters, blood pressure monitors, and other handheld medical equipment.

Features

• Low Dropout Voltage: Maintains a stable output voltage even with a small difference between input and output voltage.
• High Output Voltage Accuracy: Provides a precise and reliable voltage supply for connected devices.
• Low Quiescent Current: Minimizes power consumption when the regulator is in standby mode, extending battery life.
• Overcurrent Protection: Protects the regulator and connected devices from damage due to excessive current draw.
• Thermal Shutdown Protection: Prevents the regulator from overheating and potentially failing.
• Small Package Size: Allows for compact and space-saving designs.

Benefits

• Extended Battery Life: Low quiescent current and low dropout voltage contribute to longer battery life in portable devices.
• Stable and Reliable Performance: High output voltage accuracy ensures consistent performance of connected devices.
• Enhanced System Reliability: Overcurrent and thermal shutdown protection improve the overall reliability of the system.
• Smaller and More Compact Designs: Small package size enables smaller and more portable device designs.
• Simplified Circuit Design: Integrated protection features reduce the need for external components, simplifying circuit design.

Additional Details

The R1141Q261D-TR has a fixed output voltage of 2.6V. It is typically available in a small SOT-23-5 package. The operating temperature range is usually from -40°C to +85°C. It provides excellent transient response, making it suitable for applications where the load current changes rapidly. The device is commonly RoHS compliant, ensuring adherence to environmental regulations.