Texas Instruments

REG1117-2.85G4  

Linear & Switching Voltage Regulators

REG1117-2.85G4 Description

The REG1117-2.85G4 is a fixed output linear regulator designed by Texas Instruments, offering a stable 2.85V output voltage with a maximum input voltage of 15V. This regulator is capable of delivering up to 800mA of output current, making it suitable for a variety of power management applications. The device is housed in a SOT223-4 package, which is ideal for surface mount applications, ensuring efficient heat dissipation and compact design integration.

REG1117-2.85G4 Features

• Fixed Output Voltage: The REG1117-2.85G4 provides a fixed output voltage of 2.85V, ensuring consistent power supply to connected devices.
• High Input Voltage Range: With a maximum input voltage of 15V, this regulator can accommodate a wide range of input sources, enhancing its versatility.
• High Output Current Capability: The ability to deliver up to 800mA of output current makes it suitable for applications requiring moderate to high current loads.
• Low Dropout Voltage: The maximum dropout voltage of 1.2V at 800mA ensures efficient operation even at lower input voltages, improving overall power efficiency.
• Low Quiescent Current: A quiescent current of only 10mA minimizes power consumption during standby or low-load conditions.
• High PSRR: The regulator boasts a power supply rejection ratio (PSRR) of 62dB at 120Hz, effectively filtering out noise from the input power supply.
• Protection Features: Integrated over-current and over-temperature protection features safeguard the regulator and connected circuits from damage.
• Compliance and Packaging: The device is REACH unaffected and RoHS3 compliant, ensuring environmental safety. It is available in a tube package, facilitating easy handling and storage.

REG1117-2.85G4 Applications

The REG1117-2.85G4 is well-suited for a variety of applications requiring a stable and efficient power supply. Some specific use cases include:

• Embedded Systems: Ideal for powering microcontrollers, sensors, and other low-power embedded devices that require a stable 2.85V supply.
• Consumer Electronics: Suitable for portable devices and appliances where space and power efficiency are critical.
• Industrial Controls: Provides reliable power for control modules and instrumentation that demand precise voltage regulation.
• Telecommunications: Can be used in base stations and other telecom equipment for stable power supply to critical components.

Conclusion of REG1117-2.85G4

The REG1117-2.85G4 from Texas Instruments is a robust and efficient linear regulator designed for applications requiring a stable 2.85V output. Its high output current capability, low dropout voltage, and high PSRR make it a reliable choice for various power management needs. While the product is now obsolete, its technical specifications and performance benefits still make it a valuable component for existing designs and legacy systems. For new projects, engineers may consider exploring alternative models from Texas Instruments or other manufacturers that offer similar or enhanced features.

REG1117-2.85G4 Documents

Download datasheets and manufacturer documentation for REG1117-2.85G4

Datasheets :

REG1117(A) Datasheet      

PCN Obsolescence/ EOL :

Mult Dev obs 13/Oct/2022      

PCN Design/Specification :

Die Attach Update RevB1 18/Apr/2017       Die Attach Rev B 1/Mar/2017