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LT117AH

LT117AH Description

The LT117AH from Analog Devices Inc. is a high-performance, adjustable positive linear voltage regulator designed for precision power management applications. Packaged in a TO-39 metal can, this through-hole-mount IC offers robust thermal performance and reliability, making it suitable for demanding environments. With a single regulator output, it provides adjustable voltage control, enabling flexibility in various circuit designs. Although marked as obsolete, the LT117AH remains a preferred choice for legacy systems and applications requiring stable, low-noise voltage regulation. Its EAR99 classification ensures broad exportability, while its MSL 1 (Unlimited) rating guarantees no moisture sensitivity concerns during storage or handling.

LT117AH Features

• Adjustable Output Voltage: Allows customization for specific voltage requirements, enhancing design versatility.
• TO-39 Package: Metal can packaging ensures superior heat dissipation and mechanical durability.
• Low Dropout Voltage: Optimized for efficiency in applications with tight voltage margins.
• High PSRR (Power Supply Rejection Ratio): Minimizes noise and ripple, ideal for sensitive analog circuits.
• Wide Operating Temperature Range: Reliable performance across industrial and military temperature conditions.
• Overcurrent and Thermal Protection: Built-in safeguards enhance system reliability.

LT117AH Applications

The LT117AH excels in precision power supply designs, including:

• Laboratory Equipment: Stable voltage references for test and measurement instruments.
• Aerospace and Defense Systems: Rugged performance in harsh environments.
• Legacy Industrial Controls: Replacement or maintenance of older systems requiring TO-39 packaging.
• Audio Amplifiers: Low-noise regulation for high-fidelity audio circuits.
• Medical Devices: Reliable power delivery in critical healthcare electronics.

Conclusion of LT117AH

The LT117AH stands out for its adjustability, robustness, and low-noise performance, making it a reliable choice for specialized applications despite its obsolete status. Its TO-39 metal can package and high PSRR offer distinct advantages over plastic-encapsulated regulators, particularly in thermal management and longevity. Engineers working on legacy systems or precision analog designs will find the LT117AH a dependable solution for clean, stable voltage regulation. For modern designs, Analog Devices provides newer alternatives, but the LT117AH remains a testament to enduring quality in linear regulation.