Texas Instruments

REG1117FA-5.0KTTTG

REG1117FA-5.0KTTTG Description

The REG1117FA-5.0KTTTG is a fixed-output linear regulator designed by Texas Instruments, offering a robust solution for power management applications. This regulator provides a stable 5V output voltage with a maximum input voltage of 15V, making it suitable for a wide range of electronic devices. It is capable of delivering up to 1A of output current, ensuring reliable power delivery to demanding applications. The regulator features a dropout voltage of 1.55V at 1A, which is relatively low compared to other linear regulators, allowing it to maintain efficiency even at lower input voltages.

The REG1117FA-5.0KTTTG is housed in a surface-mount DDPAK/TO263-3 package, which is ideal for compact designs and efficient heat dissipation. It also includes over-current and over-temperature protection features, enhancing the reliability and safety of the power supply. The regulator operates with a quiescent current of 10 mA and offers a power supply rejection ratio (PSRR) of 62dB at 120Hz, ensuring minimal noise and ripple on the output voltage.

REG1117FA-5.0KTTTG Features

• Fixed Output Voltage: The regulator provides a stable 5V output, ensuring consistent power supply to connected devices.
• High Input Voltage Range: With a maximum input voltage of 15V, the REG1117FA-5.0KTTTG can accommodate a variety of input sources.
• High Output Current Capability: The regulator can deliver up to 1A of output current, making it suitable for applications requiring significant power.
• Low Dropout Voltage: The dropout voltage of 1.55V at 1A ensures efficient operation even with lower input voltages, reducing power loss.
• Protection Features: Over-current and over-temperature protection enhance the reliability and safety of the regulator.
• Surface-Mount Package: The DDPAK/TO263-3 package is ideal for compact designs and efficient heat dissipation.
• Low Quiescent Current: The regulator operates with a quiescent current of 10 mA, minimizing power consumption during standby.
• High PSRR: The 62dB PSRR at 120Hz ensures minimal noise and ripple on the output voltage, providing a clean power supply.

REG1117FA-5.0KTTTG Applications

The REG1117FA-5.0KTTTG is ideal for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Consumer Electronics: Powering devices such as smartphones, tablets, and other portable electronics.
• Industrial Equipment: Providing a reliable power source for control systems, sensors, and actuators.
• Telecommunications: Ensuring stable power delivery to communication devices and infrastructure.
• Automotive Electronics: Supplying power to automotive infotainment systems, electronic control units, and other vehicle electronics.
• Medical Devices: Powering medical equipment that requires precise and stable voltage regulation.

Conclusion of REG1117FA-5.0KTTTG

The REG1117FA-5.0KTTTG is a versatile and reliable linear regulator designed for applications requiring a stable 5V output and up to 1A of current. Its low dropout voltage, high PSRR, and protection features make it an excellent choice for a wide range of power management applications. The surface-mount package ensures compact and efficient designs, while the over-current and over-temperature protection enhance reliability. Although the product is now obsolete, it remains a valuable component for existing designs and legacy systems. For new projects, engineers may consider exploring alternative models from Texas Instruments that offer similar or enhanced performance characteristics.