The R1131N151A-TR-FF is a voltage regulator IC manufactured by Ricoh. It is designed to provide a stable and accurate output voltage of 1.5V with high ripple rejection and low dropout voltage.

Applications

• Power source for microcontrollers
• Power management in portable devices
• Voltage regulation in battery-powered systems
• Power supply for sensors and other analog circuits
• Noise reduction in sensitive electronic equipment

Features

• Output Voltage: 1.5V
• 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 Built-in overcurrent protection circuit
• Small Package: SOT-23-5

Benefits

• Provides a stable and accurate 1.5V output voltage, ensuring proper operation of connected devices.
• Wide input voltage range allows for flexible power source options.
• Low dropout voltage enables operation even with low battery voltage.
• Low quiescent current extends battery life in portable applications.
• High ripple rejection minimizes noise and interference from the input power supply.
• The overcurrent protection feature protects the IC and connected devices from damage due to excessive current draw.
• Small package size saves space in compact electronic devices.

Additional Details

The R1131N151A-TR-FF utilizes a CMOS process to achieve low power consumption and high performance. It is designed for use in various portable devices such as smartphones, tablets, and wearable electronics. The device's output voltage accuracy and stability make it suitable for powering sensitive analog circuits and microcontrollers that require a precise voltage supply. The built-in overcurrent protection helps prevent damage to the regulator and the load in case of a short circuit or overload condition. 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.