Texas Instruments

LM140K-15

LM140K-15 Description

The LM140K-15 is a high-performance linear regulator designed by Texas Instruments, offering a fixed output voltage of 15V and a maximum output current of 1A. This regulator is part of the Power Management Integrated Circuit (PMIC) category and is housed in a robust TO3-2 package, making it suitable for through-hole mounting. With a maximum input voltage of 35V, the LM140K-15 ensures reliable operation in a wide range of applications. The regulator features a dropout voltage of 2V at 1A, which is relatively low compared to other regulators in its class, ensuring high efficiency even at high current loads.

LM140K-15 Features

• Fixed Output Voltage: The LM140K-15 provides a stable 15V output, making it ideal for applications requiring a consistent power supply.
• High Input Voltage Range: With a maximum input voltage of 35V, this regulator can handle a wide range of input voltages, enhancing its versatility.
• Low Dropout Voltage: At 2V dropout voltage at 1A, the LM140K-15 maintains high efficiency, reducing power loss and heat generation.
• Low Quiescent Current: The regulator operates with a quiescent current of only 6 mA, minimizing power consumption during idle periods.
• High PSRR: With a Power Supply Rejection Ratio (PSRR) of 70dB at 120Hz, the LM140K-15 effectively filters out noise from the input supply, ensuring clean output voltage.
• Protection Features: Over-temperature and short-circuit protection features safeguard the regulator and connected components from damage.
• Compliance and Reliability: The LM140K-15 is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. Its moisture sensitivity level (MSL) of 1 (unlimited) makes it suitable for various environmental conditions.

LM140K-15 Applications

The LM140K-15 is well-suited for a variety of applications where a stable and efficient power supply is critical. Some specific use cases include:

• Industrial Equipment: Provides reliable power for control systems, sensors, and actuators.
• Telecommunications: Ideal for powering base stations and other telecom equipment.
• Medical Devices: Ensures stable power supply for critical medical equipment.
• Automotive Systems: Suitable for powering various electronic components in vehicles.
• Consumer Electronics: Can be used in high-end consumer devices requiring a stable 15V supply.

Conclusion of LM140K-15

The LM140K-15 linear regulator from Texas Instruments stands out for its combination of high efficiency, low dropout voltage, and robust protection features. Its fixed 15V output and ability to handle up to 1A of current make it a reliable choice for a wide range of applications. The low quiescent current and high PSRR further enhance its performance, making it an excellent choice for applications where power efficiency and signal integrity are paramount. With its compliance to environmental and safety standards, the LM140K-15 is a reliable and versatile solution for modern power management needs.