Texas Instruments

REG101UA-2.5/2K5G4  

Linear & Switching Voltage Regulators

REG101UA-2.5/2K5G4 Description

The REG101UA-2.5/2K5G4 is a linear regulator IC designed by Texas Instruments, offering a fixed output voltage of 2.5V and a maximum output current of 100mA. This device is part of the Power Management Integrated Circuits (PMIC) category and is housed in an 8-pin SOIC package. It features a maximum input voltage of 10V and a dropout voltage of 0.13V at 100mA, ensuring efficient power conversion even at low input-to-output voltage differentials. The regulator includes an enable control feature, allowing for power-saving modes and dynamic control of the output voltage. Additionally, it provides over-current and over-temperature protection, enhancing reliability and safety in various applications. Despite being marked as obsolete, the REG101UA-2.5/2K5G4 remains a robust solution for applications requiring a stable and precise power supply.

REG101UA-2.5/2K5G4 Features

• Fixed Output Voltage: Delivers a stable 2.5V output, ideal for applications requiring a consistent power supply.
• High Efficiency: With a dropout voltage of only 0.13V at 100mA, it ensures minimal power loss and high efficiency.
• Low Quiescent Current: Features a quiescent current of 500 µA, contributing to energy savings in low-power applications.
• Enable Control: Provides an enable pin for dynamic control, allowing the regulator to be turned on and off as needed.
• Protection Features: Includes over-current and over-temperature protection to safeguard the device and connected circuits.
• Surface Mount Compatibility: The 8SOIC package is suitable for surface mount technology, facilitating compact and reliable PCB designs.
• Compliance: Meets REACH and ROHS3 standards, ensuring environmental and safety compliance.
• Moisture Sensitivity Level: MSL 2 (1 Year) ensures the device remains stable and functional in various environmental conditions.

REG110UA-2.5/2K5G4 Applications

The REG101UA-2.5/2K5G4 is well-suited for a variety of applications where a stable and precise power supply is essential. Some specific use cases include:

• Embedded Systems: Provides a reliable power source for microcontrollers and other low-power embedded devices.
• Consumer Electronics: Ideal for portable devices that require a stable 2.5V supply, such as MP3 players, digital cameras, and handheld gaming consoles.
• Industrial Control: Suitable for powering sensors and actuators in industrial environments where precise voltage regulation is critical.
• Medical Devices: Can be used in medical equipment that requires a stable power supply to ensure accurate readings and reliable operation.
• Telecommunications: Powers low-voltage components in communication devices, ensuring stable performance and minimal power loss.

Conclusion of REG101UA-2.5/2K5G4

The REG101UA-2.5/2K5G4 from Texas Instruments is a versatile linear regulator that offers a combination of high efficiency, low dropout voltage, and robust protection features. Its fixed 2.5V output and 100mA current capability make it suitable for a wide range applications of, from consumer electronics to industrial control systems. Despite its obsolete status, the device remains a reliable choice for engineers seeking a stable and precise power supply. The inclusion of enable control and comprehensive protection features further enhances its utility in modern electronic designs.

REG101UA-2.5/2K5G4 Documents

Download datasheets and manufacturer documentation for REG101UA-2.5/2K5G4