Texas Instruments

LM140K-12  

Linear & Switching Voltage Regulators

LM140K-12 Description

The LM140K-12 is a fixed-output linear regulator designed for a wide range of applications requiring a stable 12V power supply. Manufactured by Texas Instruments, this regulator is part of the Power Management Integrated Circuits (PMIC) category, offering robust performance and reliability. The LM140K-12 features a maximum input voltage of 35V and is capable of delivering a continuous output current of 1A. It is housed in a TO39-3 package, making it suitable for through-hole mounting.

LM140K-12 Features

• Output Type: Fixed at 12V, ensuring a stable power supply for various electronic devices.
• Input Voltage Range: Supports a maximum input voltage of 35V, providing flexibility in power source selection.
• Output Current: Delivers a continuous 1A output current, making it ideal for applications requiring moderate power levels.
• Voltage Dropout: A maximum dropout voltage of 2V at 1A ensures efficient operation even at lower input voltages.
• Quiescent Current: Low quiescent current of 6 mA minimizes power consumption during standby conditions.
• Power Supply Rejection Ratio (PSRR): Achieves a high PSRR of 72dB at 120Hz, effectively reducing noise and ripple in the output voltage.
• Protection Features: Over-temperature and short-circuit protection enhance reliability and protect the regulator from damage under abnormal operating conditions.
• Compliance: The LM140K-12 is REACH affected and RoHS3 compliant, ensuring it meets environmental and regulatory standards.
• Moisture Sensitivity Level (MSL): MSL 1 (Unlimited) indicates the device is not moisture-sensitive, simplifying storage and handling requirements.

LM140K-12 Applications

The LM140K-12 is well-suited for a variety of applications where a stable 12V power supply is required. Some specific use cases include:

• Industrial Equipment: Provides a reliable power source for control systems, sensors, and actuators.
• Telecommunications: Powers communication modules and peripheral devices.
• Automotive Electronics: Suitable for in-vehicle electronics, such as infotainment systems and electronic control units.
• Consumer Electronics: Ideal for powering devices like routers, set-top boxes, and other low-power electronics.
• Medical Devices: Ensures stable power for medical equipment, contributing to accurate and reliable operation.

Conclusion of LM140K-12

The LM140K-12 linear regulator from Texas Instruments offers a reliable and efficient solution for applications requiring a stable 12V power supply. Its low dropout voltage, high PSRR, and comprehensive protection features make it a robust choice for various industrial, automotive, and consumer applications. The through-hole mounting and compliance with environmental standards further enhance its suitability for a wide range of electronic systems.

LM140K-12 Documents

Download datasheets and manufacturer documentation for LM140K-12

PCN Assembly/Origin :

Wafer Fab Site 23/Mar/2020      

Datasheets :

LM140K      

HTML Datasheet :

LM140K