Texas Instruments

LM2940SX-9.0/NOPB  

Linear & Switching Voltage Regulators

LM2940SX-9.0/NOPB Description

The LM2940SX-9.0/NOPB is a high-performance linear regulator designed for applications requiring a stable 9V output voltage with a maximum output current of 1A. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a surface-mount DDPAK/TO263-3 package. It features a maximum input voltage of 26V and a dropout voltage of 1V at full load, ensuring efficient operation even under varying input conditions. The regulator is designed to operate with a quiescent current of 10 mA, making it suitable for low-power applications. Additionally, it offers a power supply rejection ratio (PSRR) of 64dB at 120Hz, ensuring minimal noise in the output voltage.

LM2940SX-9.0/NOPB Features

• Fixed Output Voltage: The LM2940SX-9.0/NOPB provides a stable 9V output, making it ideal for applications requiring a precise voltage level.
• High Input Voltage Range: With a maximum input voltage of 26V, this regulator can handle a wide range of input conditions, enhancing its versatility.
• Low Dropout Voltage: The 1V dropout voltage at 1A ensures efficient operation across a broad input voltage range, reducing power loss and improving overall efficiency.
• Protection Features: The regulator includes over-current, over-temperature, reverse polarity, and short-circuit protection, safeguarding both the device and the connected circuitry.
• Low Quiescent Current: A quiescent current of 10 mA ensures minimal power consumption during operation, making it suitable for battery-powered and low-power applications.
• High PSRR: The 64dB PSRR at 120Hz minimizes noise and ripple in the output voltage, ensuring clean power delivery to sensitive circuits.
• Surface-Mount Package: The DDPAK/TO263-3 package is ideal for surface-mount applications, providing a compact and reliable solution for modern electronics.

LM2940SX-9.0/NOPB Applications

The LM2940SX-9.0/NOPB is well-suited for a variety of applications where a stable 9V output is required. Some specific use cases include:

• Consumer Electronics: Ideal for powering devices such as portable audio equipment, gaming consoles, and other consumer electronics that require a stable 9V supply.
• Industrial Equipment: Suitable for industrial control systems, sensors, and actuators that need a reliable power source with minimal noise and ripple.
• Telecommunications: Can be used in telecommunication equipment for powering various modules and components that require a stable 9V supply.
• Automotive Electronics: Due to its robust protection features and wide input voltage range, it is suitable for automotive applications where the input voltage can vary significantly.
• Battery-Powered Devices: The low quiescent current and high efficiency make it an excellent choice for battery-powered devices, extending battery life and improving overall performance.

Conclusion of LM2940SX-9.0/NOPB

The LM2940SX-9.0/NOPB from Texas Instruments is a robust and versatile linear regulator that offers a stable 9V output with a maximum current of 1A. Its low dropout voltage, high PSRR, and comprehensive protection features make it an ideal choice for a wide range of applications. Whether used in consumer electronics, industrial equipment, or automotive systems, the LM2940SX-9.0/NOPB provides reliable and efficient power management. Its surface-mount package and compliance with industry standards such as REACH and RoHS further enhance its suitability for modern electronics.

LM2940SX-9.0/NOPB Documents

Download datasheets and manufacturer documentation for LM2940SX-9.0/NOPB

PCN Assembly/Origin :

Mult Devices 12/Apr/2018      

Datasheets :

LM2940-N, 2940C Datasheet      

HTML Datasheet :

LM2940-N, 2940C Datasheet