LT1963AEST-3.3V Voltage Regulator

The LT1963AEST-3.3V from Linear Technology is a high-performance, low dropout linear regulator designed to deliver a continuous output current of up to 1.5A with a fixed output voltage of 3.3V. This regulator is part of the LT1963 series, known for their low noise, high efficiency, and fast transient response, making them suitable for a wide range of applications including sensitive RF and audio circuits, as well as FPGA and microprocessor power supplies.

The device is optimized for low voltage applications and has a dropout voltage of typically 340mV at full load, which allows for efficient operation even when the input-to-output differential is small. The low dropout voltage combined with a low quiescent current makes the LT1963AEST-3.3V an excellent choice for battery-powered devices, where maximizing battery life is crucial.

One of the key features of the LT1963AEST-3.3V is its stability with ceramic output capacitors, requiring a minimum of only 10μF for stability, which can be of critical importance in space-constrained applications. Additionally, the regulator has built-in protection features including overcurrent and overtemperature protection, ensuring reliable operation under a wide range of conditions.

The device is housed in a thermally efficient TO-263 package, which aids in heat dissipation and allows for operation at higher ambient temperatures without the need for additional heatsinking. This makes the LT1963AEST-3.3V a versatile choice for both commercial and industrial environments.

For applications requiring different output voltages, the LT1963 series includes adjustable versions that can be configured with external resistors. However, the LT1963AEST-3.3V with its fixed 3.3V output provides a convenient solution for applications where the voltage requirement is known and stability is paramount.

In summary, the LT1963AEST-3.3V is a robust, high-performance LDO voltage regulator that offers low dropout, low noise, and high efficiency, suitable for a variety of demanding applications.