Texas Instruments

REG1117FA-1.8/500

REG1117FA-1.8/500 Description

The REG1117FA-1.8/500 is a fixed linear voltage regulator designed by Texas Instruments. This IC offers a regulated output voltage of 1.8V with a maximum input voltage of 15V and a continuous output current of 1A. It is housed in a surface-mount DDPAK/TO263-3 package, making it suitable for compact and high-performance applications. Despite being marked as obsolete, the REG1117FA-1.8/500 remains a reliable choice for applications requiring a stable and efficient power supply.

REG1117FA-1.8/500 Features

• Output Type: Fixed, ensuring a consistent 1.8V output.
• Input Voltage Range: Up to 15V, providing flexibility in power supply design.
• Output Current: Capable of delivering up to 1A, suitable for a wide range of applications.
• Low Dropout Voltage: A maximum dropout voltage of 1.55V at 1A ensures high efficiency even at low input-to-output voltage differentials.
• Protection Features: Over-current and over-temperature protection enhance reliability and safeguard the regulator from damage.
• Low Quiescent Current: At 10 mA, the quiescent current is minimized, contributing to overall system efficiency.
• High PSRR: A power supply rejection ratio of 62dB at 120Hz ensures minimal noise and ripple on the output voltage.
• Compliance: REACH unaffected and RoHS3 compliant, ensuring environmental and regulatory standards are met.
• Mounting Type: Surface mount, ideal for modern PCB designs requiring compact components.
• Moisture Sensitivity Level: MSL 2 (1 year), suitable for standard manufacturing processes.

REG1117FA-1.8/500 Applications

The REG1117FA-1.8/500 is well-suited for a variety of applications where a stable and efficient power supply is crucial. Its fixed 1.8V output makes it ideal for powering digital circuits, microcontrollers, other and low-voltage devices. The regulator's low dropout voltage and high PSRR make it particularly advantageous in applications where space is limited and noise must be minimized. Specific use cases include:

• Embedded Systems: Providing a stable power supply for microcontrollers and sensors.
• Consumer Electronics: Ideal for portable devices requiring efficient power management.
• Telecommunications: Suitable for powering low-voltage components in communication equipment.
• Industrial Control: Reliable power supply for PLCs and other industrial automation devices.

Conclusion of REG1117FA-1.8/500

The REG1117FA-1./8500 is a robust and efficient linear voltage regulator that offers a fixed 1.8V output with a maximum input voltage of 15V and a continuous output current of 1A. Its low dropout voltage, high PSRR, and protection features make it a reliable choice for a variety of applications. Despite being marked as obsolete, the REG1117FA-1.8/500 remains a viable option for engineers seeking a stable and efficient power supply solution.