Texas Instruments

REG1117A-1.8/2K5  

Linear & Switching Voltage Regulators

REG1117A-1.8/2K5 Description

The REG1117A-1.8/2K5 is a fixed-output linear voltage regulator designed by Texas Instruments, offering a stable 1.8V output voltage with a maximum input voltage of 15V. This regulator is capable of delivering up to 1A of output current, making it suitable for a wide range of applications requiring a reliable and efficient power supply. The regulator features a dropout voltage of 1.55V at 1A, ensuring efficient operation even at lower input voltages. It is housed in a Surface Mount SOT223-4 package, which is ideal for compact and space-constrained designs.

REG1117A-1.8/2K5 Features

• Fixed Output Voltage: The REG1117A-1.8/2K5 provides a stable 1.8V output voltage, ensuring consistent power delivery to connected devices.
• High Input Voltage Range: With a maximum input voltage of 15V, this regulator can handle a wide range of input voltages, making it versatile for various power supply configurations.
• Low Dropout Voltage: The 1.55V dropout voltage at 1A ensures high efficiency, especially when operating near the minimum input voltage.
• Over Current and Over Temperature Protection: These protection features safeguard the regulator and connected devices from damage due to overcurrent and overheating conditions.
• Low Quiescent Current: The 10 mA quiescent current minimizes power consumption during standby or low-load conditions.
• High PSRR: The 62dB Power Supply Rejection Ratio at 120Hz helps in filtering out noise from the input power supply, ensuring clean output voltage.
• RoHS3 Compliant: The regulator meets the stringent environmental standards of RoHS3, making it suitable for environmentally conscious designs.
• Moisture Sensitivity Level 1: The unlimited moisture sensitivity level ensures robustness and reliability in various environmental conditions.
• Surface Mount Packaging: The SOT223-4 package is ideal for surface mount applications, providing a compact and reliable solution for modern electronic designs.

REG11117A-1.8/2K5 Applications

The REG1117A-1.8/2K5 is well-suited for a variety of applications where a stable and efficient power supply is required. Some specific use cases include:

• Embedded Systems: Providing a reliable power source for microcontrollers, sensors, and other low-power devices.
• Consumer Electronics: Ideal for portable devices, audio equipment, and other consumer products that require a stable 1.8V supply.
• Industrial Applications: Suitable for industrial control systems, automation equipment, and other applications where robustness and efficiency are critical.
• Telecommunications: Powering communication modules, base stations, and other telecom equipment that require a stable and efficient power supply.

Conclusion of REG1117A-1.8/2K5

The REG1117A-1.8/2K5 from Texas Instruments is a high-performance linear voltage regulator that offers a stable 1.8V output with a maximum input voltage of 15V and a 1A output current capability. Its low dropout voltage, over current and over temperature protection, and low quiescent current make it an ideal choice for a wide range of applications. The regulator's RoHS3 compliance and moisture sensitivity level 1 ensure it meets environmental and reliability standards. With its compact SOT223-4 package, the REG1117A-1.8/2K5 is a versatile and efficient solution for modern electronic designs.

REG1117A-1.8/2K5 Documents

Download datasheets and manufacturer documentation for REG1117A-1.8/2K5

Datasheets :

REG1117(A) Datasheet      

PCN Obsolescence/ EOL :

EOL 25/Sept/2023      

PCN Design/Specification :

Die Rev 13/Jul/2017       Die Attach Rev B 1/Mar/2017