LT1963AET - Low Noise, Fast Transient Response LDO from Linear Technology

The LT1963AET is a high-performance low dropout linear regulator (LDO) designed and manufactured by Linear Technology, now part of Analog Devices. This LDO is known for its low noise and fast transient response, making it an ideal choice for sensitive applications where power integrity is crucial.

Key Features

• Output Voltage Range: The LT1963AET offers an adjustable output voltage range from 1.21V to 20V, which can be set with external resistors, providing flexibility for various applications.
• Low Dropout Voltage: With a low dropout voltage of typically 340mV at full load, it is highly efficient and can operate effectively even when the input-to-output voltage differential is minimal.
• High Output Current: It is capable of delivering up to 1.5A of continuous output current, catering to applications with higher power demands.
• Low Noise: The LT1963AET exhibits exceptionally low noise characteristics, with only 40µVRMS (10Hz to 100kHz), making it suitable for noise-sensitive circuits like precision data converters and RF applications.
• Fast Transient Response: The device's fast transient response ensures stable output during rapid load changes, which is critical for maintaining the performance of high-speed digital processors and other demanding loads.
• Stability: The regulator is stable with output capacitors as low as 10µF, allowing the use of small ceramic capacitors that save space and cost without compromising performance.
• Protection Features: It includes several protection features such as overcurrent and overtemperature protection, ensuring reliable operation under adverse conditions.
• Thermal Performance: The LT1963AET is available in a TO-220 package, providing excellent thermal performance and making it suitable for high-power applications.

Applications

The LT1963AET's performance characteristics make it an excellent choice for a wide range of applications, including:

• High Efficiency Linear Regulators
• Post-Regulation for Switching Supplies
• Low Noise Power Supplies for RF and Audio Applications
• Microprocessor and Memory Supplies
• Battery-Powered Equipment
• Supply for DSP and High-Speed Logic

In summary, the LT1963AET from Linear Technology is a versatile, high-quality LDO that offers the precision, low noise, and fast transient response required by advanced electronic systems.