The R1170S331B-E2-F is a low-dropout (LDO) voltage regulator IC manufactured by Ricoh. This device is designed to provide a stable and regulated 3.3V output voltage from a higher input voltage. It includes protection features making it suitable for numerous electronic applications needing a dependable 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 3.3V
• 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 R1170S331B-E2-F is a CMOS-based voltage regulator featuring a fixed 3.3V output voltage. It has a low dropout voltage characteristic, meaning it can maintain a stable output even when the input voltage is very close to the desired output. This makes it a good fit for battery-powered situations. The included overcurrent protection restricts the output current in case of a short circuit or overload, safeguarding the regulator and any connected components. Additionally, thermal shutdown protection will disable the regulator if it gets too hot, preventing damage. This compact regulator provides efficient and reliable voltage regulation.

Technical Specifications:

• Output Voltage: 3.3V
• 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