Texas Instruments

LM117H

LM117H Description

The LM117H is a high-performance linear voltage regulator designed by Texas Instruments, offering adjustable output voltage capabilities. This regulator is ideal for applications requiring a robust and reliable power supply solution. With a maximum input voltage of 40V and a maximum output current of 1.5A, the LM117H is well-suited for a wide range of electronic systems. The regulator features a positive output configuration and an adjustable output voltage range from 1.25V to 37V, providing flexibility in power supply design.

LM117H Features

• Adjustable Output Voltage: The LM117H offers an adjustable output voltage range from 1.25V to 37V, making it highly versatile for various applications.
• High Input Voltage: Capable of handling input voltages up to 40V, this regulator is suitable for systems with high voltage requirements.
• High Output Current: With a maximum output current of 1.5A, the LM117H can support demanding applications that require substantial power.
• Low Quiescent Current: The regulator features a low quiescent current of 5mA, which is beneficial for energy-efficient designs.
• High PSRR: The Power Supply Rejection Ratio (PSRR) ranges from 80dB to 65dB at 120Hz, ensuring excellent noise rejection and stable output voltage.
• Protection Features: The LM117H includes over-current, over-temperature, and short-circuit protection, enhancing reliability and safety.
• Through Hole Mounting: The through-hole mounting type ensures mechanical stability and ease of integration into printed circuit boards.
• Compliance and Packaging: The regulator is REACH unaffected, RoHS3 compliant, and has a Moisture Sensitivity Level (MSL) of 1 (Unlimited), making it suitable for various manufacturing environments. It is available in bulk packaging.

LM117H Applications

The LM117H is ideal for a variety of applications due to its adjustable output voltage and robust performance features. Some specific use cases include:

• Power Supply Design: Suitable for designing power supplies in industrial and consumer electronics.
• Battery Chargers: Can be used in battery charging circuits due to its adjustable output voltage and high current capability.
• Medical Equipment: Ideal for medical devices that require stable and reliable power sources.
• Telecommunications: Useful in telecom equipment where high input voltage tolerance and low noise are critical.
• Automotive Electronics: Suitable for automotive applications due to its high current capacity and protection features.

Conclusion of LM117H

The LM117H from Texas Instruments is a versatile and reliable linear voltage regulator that stands out in its category. Its adjustable output voltage range, high input voltage capability, and robust protection features make it an excellent choice for a wide range of applications. The low quiescent current and high PSRR ensure efficient and stable performance, while its compliance with industry standards ensures compatibility and ease of use. Whether used in power supply design, battery charging, or other demanding applications, the LM117H offers a high level of performance and reliability.