Texas Instruments

REG101NA-3.3/3K  

Linear & Switching Voltage Regulators

REG101NA-3.3/3K Description

The REG101NA-3.3/3K is a linear regulator IC designed by Texas Instruments, offering a fixed output voltage of 3.3V and a maximum output current of 100mA. This device is housed in a compact SOT23-5 package, making it suitable for surface mount applications. The regulator is designed to operate with an input voltage range up to 10V, ensuring compatibility with a variety of power sources. With a maximum dropout voltage of 0.13V at 100mA, the REG101NA-3.3/3K ensures high efficiency even at low input-to-output voltage differentials. The device also features a low quiescent current of 500 µA and a supply current of 650 µA, contributing to its overall energy efficiency.

REG101NA-3.3/3K Features

• Fixed Output Voltage: Provides a stable 3.3V output, ideal for powering sensitive electronics and microcontrollers.
• High Efficiency: With a low dropout voltage of 0.13V at 100mA, this regulator maintains high efficiency even at low input-to-output voltage differences.
• Low Quiescent Current: At 500 µA, the quiescent current is minimized, making this regulator suitable for battery-powered applications.
• Enable Control: Features an enable pin for easy control of the regulator's operation, allowing for power-saving modes and dynamic power management.
• Protection Features: Includes over-current and over-temperature protection, ensuring reliable operation and preventing damage under abnormal conditions.
• High PSRR: A power supply rejection ratio of 65dB at 120Hz ensures minimal noise and ripple on the output voltage, providing clean power to sensitive circuits.
• Compliance and Packaging: The REG101NA-3.3/3K is REACH unaffected and ROHS3 compliant, ensuring environmental safety. It is available in a tape and reel package, facilitating automated assembly processes.

REG101NA-3.3/3K Applications

The REG101NA-3.3/3K is ideal for a wide range of applications requiring a stable and efficient power supply. Its compact size and low dropout voltage make it particularly suitable for:

• Battery-Powered Devices: Ideal for portable electronics where battery life and efficiency are critical.
• Microcontroller Power Supplies: Provides a stable 3.3V supply for microcontrollers and other low-power electronics.
• Embedded Systems: Suitable for embedded systems requiring a reliable and efficient power solution.
• IoT Devices: Ideal for Internet of Things (IoT) devices where low power consumption and small form factor are essential.
• Consumer Electronics: Can be used in various consumer electronics applications where a stable 3.3V supply is needed.

Conclusion of REG101NA-3.3/3K

The REG101NA-3.3/3K from Texas Instruments is a versatile and efficient linear regulator designed for applications requiring a stable 3.3V supply. Its low dropout voltage, low quiescent current, and enable control feature make it an excellent choice for battery-powered and low-power applications. The inclusion of over-current and over-temperature protection ensures reliable operation, while its high PSRR guarantees minimal noise on the output voltage. With its compact SOT23-5 package and surface mount compatibility, the REG101NA-3.3/3K is ideal for a wide range of applications, from microcontroller power supplies to IoT devices.

REG101NA-3.3/3K Documents

Download datasheets and manufacturer documentation for REG101NA-3.3/3K

Datasheets :

REG101      

PCN Obsolescence/ EOL :

EOL NOTICE 15/Nov/2023