The R1141Q311D-TR-F is a low-dropout (LDO) voltage regulator IC manufactured by Ricoh. It is designed to provide a stable and accurate output voltage of 3.1V. As part of the R1141Q series, it features low current consumption, high output voltage accuracy, and a small package size, making it suitable for a wide range of portable and battery-powered applications.

Applications

• Mobile Phones: Used for power management of various internal components requiring a regulated voltage supply.
• Wearable Devices: Providing stable voltage for microcontrollers and sensors in smartwatches, fitness trackers, and other wearables.
• IoT (Internet of Things) Devices: Powering sensors, communication modules, and microprocessors in low-power IoT applications.
• Wireless Communication Modules: Voltage regulation for RF transceivers, Bluetooth modules, and other wireless components.
• Portable Medical Devices: Ensuring stable and reliable power for sensitive electronic components in medical equipment.

Features

• Fixed Output Voltage: 3.1V regulated output.
• Low Dropout Voltage: Maintains a stable output even with a small difference between input and output voltage.
• Low Quiescent Current: Minimizes power consumption, extending battery life in portable devices.
• High Output Voltage Accuracy: Provides a precise and reliable voltage supply.
• Small Package: Compact footprint allows for space-saving designs.
• Overcurrent Protection: Protects the regulator and connected circuitry from excessive current.
• Thermal Shutdown Protection: Prevents damage from overheating.

Benefits

• Stable Power Supply: Ensures a consistent and accurate voltage for optimal performance of electronic components.
• Extended Battery Life: Low quiescent current helps maximize battery runtime in portable devices.
• Compact Design: Small package size allows for easy integration into space-constrained applications.
• Enhanced Reliability: Overcurrent and thermal shutdown protection enhance the durability and lifespan of the regulator.
• Simplified Design: Fixed output voltage simplifies circuit design and reduces the need for external components.

Additional Details

The R1141Q311D-TR-F is typically packaged in a small SOT-23 or similar surface-mount package. It is designed for use with ceramic capacitors for stable operation and noise reduction. The operating temperature range is usually -40°C to +85°C. The typical input voltage range is 1.6V to 5.5V. The device is RoHS compliant.