The R1170S251B-E2-FA is a voltage regulator IC manufactured by Ricoh. It's designed to provide a stable and regulated output voltage, making it suitable for various electronic applications requiring a reliable power source.

Applications

• Powering microcontrollers in embedded systems
• Voltage regulation for sensors in IoT devices
• Power management in portable electronic devices
• Battery-powered applications

Features

• Fixed output voltage of 2.5V
• Low dropout voltage
• Overcurrent protection
• Thermal shutdown protection
• Small SOT-23-5 package

Benefits

• Provides stable and accurate voltage supply
• Extends battery life due to low dropout voltage
• Protects the device from overcurrent and over-temperature conditions
• Saves space on the circuit board

The R1170S251B-E2-FA is a CMOS-based voltage regulator with a fixed 2.5V output voltage. It has a low dropout voltage characteristic, meaning it can maintain the output voltage even when the input voltage is only slightly higher. This is particularly important for battery-powered applications. The overcurrent protection feature limits the output current in the event of a short circuit or overload. Thermal shutdown protection disables the regulator if it overheats, preventing damage to the regulator and connected components. This regulator is a good choice for compact, efficient, and reliable voltage regulation needs.

Technical Specifications:

• Output Voltage: 2.5V
• Input Voltage Range: 2.0V to 6.0V
• Output Current: Up to 300mA
• Dropout Voltage: Typically 150mV at 100mA
• Operating Temperature Range: -40°C to +85°C
• Package: SOT-23-5