The R1141Q331B-TR-FA is a low-dropout (LDO) voltage regulator manufactured by Ricoh. It is designed to provide a stable and accurate output voltage of 3.3V. This regulator is part of the R1141Q series, known for its low current consumption, high accuracy, and small package size, making it suitable for various portable and battery-powered applications.

Applications

• Smartphones and Mobile Devices: Powering various internal circuits that require a stable 3.3V supply.
• Wearable Technology: Providing stable voltage for sensors, microcontrollers, and other components in smartwatches and fitness trackers.
• IoT (Internet of Things) Devices: Powering sensors, communication modules, and microprocessors in low-power IoT applications.
• Wireless Communication Modules: Regulating voltage for RF transceivers, Bluetooth modules, and other wireless communication components.
• Portable Audio Devices: Used for power management in portable music players, providing a stable voltage for audio processing and amplification.

Features

• Fixed Output Voltage: 3.3V output.
• Low Dropout Voltage: Maintains stable output even with a small difference between input and output voltage.
• Low Quiescent Current: Minimizes power consumption, which extends battery life.
• High Output Voltage Accuracy: Provides a precise and reliable voltage supply for sensitive circuits.
• Small Package: Compact package allows for use in space-constrained applications.
• Overcurrent Protection: Protects the regulator and load from excessive current.
• Thermal Shutdown Protection: Prevents damage due to overheating.

Benefits

• Stable Power Supply: Ensures consistent and reliable voltage, improving the performance of connected devices.
• Extended Battery Life: Low quiescent current helps maximize battery runtime in portable devices.
• Compact Integration: Small form factor enables easy integration into small form-factor devices.
• Reliable Operation: Overcurrent and thermal shutdown protection enhance the regulator's lifespan.
• Simplified Design: Fixed output voltage simplifies circuit design and reduces the need for external components.

Additional Details

The R1141Q331B-TR-FA comes 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 typical operating temperature range is -40°C to +85°C. The input voltage range is typically 1.6V to 5.5V. The device is RoHS compliant, meaning it is free from hazardous substances.