The R1131N331A-TR-FF is a voltage regulator IC manufactured by Ricoh. It provides a stable and accurate output voltage of 3.3V, making it suitable for a wide range of electronic applications.

Applications

• Microcontroller power supplies
• Portable electronic devices (smartphones, tablets)
• Wireless communication devices
• Sensor power supplies
• Battery-powered equipment

Features

• Output Voltage: 3.3V
• Input Voltage Range: 1.6V to 5.5V
• Output Voltage Accuracy: ±0.8%
• Low Dropout Voltage: 0.17V at 100mA
• Low Quiescent Current: 40µA (typ.)
• High Ripple Rejection: 70dB (typ.)
• Overcurrent Protection: Integrated overcurrent protection circuit
• Package: SOT-23-5

Benefits

• Provides a stable and accurate 3.3V supply, ensuring reliable operation of connected components.
• Wide input voltage range allows operation from various power sources.
• Low dropout voltage maximizes battery life by enabling operation even with low battery voltages.
• Low quiescent current minimizes power consumption, extending battery life in portable applications.
• High ripple rejection reduces noise and interference from the power supply, improving system performance.
• The overcurrent protection prevents damage to the regulator and connected devices in case of overload or short circuit.
• Small SOT-23-5 package allows for compact designs.

Additional Details

The R1131N331A-TR-FF is designed for portable applications where efficiency and small size are critical. It employs a CMOS process for low power consumption. The regulator is ideal for applications requiring a stable 3.3V supply, such as powering microcontrollers, sensors, and other low-power components. Its small size and integrated protection features make it a reliable and space-saving solution. The device is available in a SOT-23-5 package, suitable for high-density PCB layouts. The operating temperature range is -40°C to +85°C.