The REG113EA-3.3 is a high-performance, low-dropout voltage regulator from Texas Instruments, designed to deliver a fixed output of 3.3 volts. This efficient regulator is capable of supplying 400mA of output current, making it an excellent choice for a wide range of applications. The REG113EA-3.3 is part of Texas Instruments' REG113 series, known for their low dropout voltages and low quiescent current.

Key Features

• Output Voltage: 3.3V fixed output with excellent load and line regulation.
• Output Current: Capable of delivering up to 400mA of continuous current.
• Low Dropout: Features a low dropout voltage, typically 180mV at full load, enhancing efficiency.
• Quiescent Current: Low quiescent current, typically 125μA, which is reduced to 1μA in shutdown mode.
• Thermal Protection: Built-in thermal shutdown and current limit protection mechanisms ensure safe operation under abnormal conditions.
• Package Options: Available in a variety of package types, including SOT23-5 and MSOP-8, to fit different design requirements.

Applications

The REG113EA-3.3 is suitable for a diverse range of applications that require a stable and efficient power supply. Common applications include:

• Battery-powered devices
• Portable and handheld equipment
• Microcontrollers and digital logic supplies
• Peripheral power supplies
• Reference voltage sources

Performance Benefits

The REG113EA-3.3 offers several performance benefits that make it a reliable choice for designers. Its low dropout voltage allows for efficient operation even when the input voltage is close to the output voltage, minimizing power loss and heat generation. The low quiescent current extends battery life in portable applications, and the fast transient response ensures stable voltage supply during sudden changes in load. The combination of thermal and current limit protection ensures that the device and the application it powers are safeguarded against damage due to overheating or overcurrent conditions.