Texas Instruments

LM320T-5.0  

Linear & Switching Voltage Regulators

LM320T-5.0 Description

The LM320T-5.0 is a fixed-output linear regulator designed by Texas Instruments, offering a regulated -5V output at a maximum current of 1.5A. This single regulator is housed in a through-hole TO220-3 package, making it suitable for a variety of power management applications. Despite its obsolete status, the LM320T5-.0 remains a reliable choice for applications requiring a stable negative voltage supply. The regulator operates within a temperature range of 0°C to 125°C, ensuring robust performance in diverse environments. With a quiescent current of only 2 mA and a power supply rejection ratio (PSRR) of 64dB at 120Hz, the LM320T-5.0 provides efficient power regulation with minimal noise. Additionally, it features over-current and over-temperature protection, enhancing its reliability and safety.

LM320T-5.0 Features

• Fixed Output Voltage: The LM320T-5.0 provides a stable -5V output, making it ideal for applications requiring a consistent negative voltage supply.
• High Current Capability: With a maximum output current of 1.5A, this regulator can support demanding applications that require significant power.
• Low Quiescent Current: The regulator operates with a quiescent current of just 2 mA, ensuring minimal power consumption during idle periods.
• High PSRR: A power supply rejection ratio of 64dB at 120Hz ensures that the regulator can effectively filter out noise from the input power supply, providing a clean output voltage.
• Protection Features: Over-current and over-temperature protection mechanisms safeguard the regulator and connected components from damage due to excessive current or temperature.
• Wide Operating Temperature Range: The LM320T-5.0 operates reliably between 0°C and 125°C, making it suitable for both industrial and consumer applications.
• Through-Hole Mounting: The TO220-3 package allows for easy integration into through-hole printed circuit boards, facilitating straightforward assembly and robust mechanical stability.

LM320T-5.0 Applications

The LM320T-5.0 is well-suited for a range of applications where a stable negative voltage supply is essential. Some specific use cases include:

• Industrial Control Systems: Providing a reliable power source for sensors, actuators, and control circuits that require a negative voltage.
• Telecommunications Equipment: Supplying power to components such as amplifiers and filters that operate on negative voltage rails.
• Medical Devices: Ensuring stable power delivery to critical components in medical monitoring and diagnostic equipment.
• Consumer Electronics: Supporting the power needs of devices such as audio amplifiers and power supplies that require a negative voltage for proper operation.

Conclusion of LM320T-5.0

The LM320T-5.0 is a versatile and reliable linear regulator designed to meet the power management needs of various applications. Its fixed -5V output, high current capability, and low quiescent current make it an efficient and effective solution for providing stable power. The inclusion of over-current and over-temperature protection features enhances its reliability and safety, making it a robust choice for both industrial and consumer applications. Despite its obsolete status, the LM320T-5.0 remains a valuable component for applications requiring a stable negative voltage supply.

LM320T-5.0 Documents

Download datasheets and manufacturer documentation for LM320T-5.0

Datasheets :

LM120/LM320      

HTML Datasheet :

LM120/LM320