Texas Instruments LT1763IS8-3.3

of LT1763IS8-3.3 The LT1763IS8-3.3 is a low-dropout (LDO) linear voltage regulator, designed to provide a stable output voltage of 3.3V. It features a low quiescent current, making it suitable for battery-powered applications and devices that require efficient power management. Functions - Voltage Regulation: Provides a fixed output voltage of 3.3V with excellent load and line regulation. - Low Dropout Voltage: Allows for operation even with minimal headroom, typically in the range of 300mV under full load conditions. - Low Quiescent Current: Consumes less power during operation, which is essential for energy-sensitive applications. - Thermal Protection: Includes over-temperature protection to safeguard the device and connected circuits. - Short-Circuit Protection: Protects the device from damage in the event of a short circuit. Applications - Battery-Powered Devices: Ideal for portable electronics where energy efficiency is crucial. - Microcontrollers and DSPs: Provides stable power supply for microcontrollers, digital signal processors, and other low-power ICs. - RF Applications: Suitable for RF communication devices that need clean and stable power to operate effectively. - Consumer Electronics: Used in gadgets, wearables, and other consumer electronic devices. Alternative Parts - LM1117-3.3: A similar LDO regulator from Texas Instruments, offering a 3.3V output with slightly different specifications. - LT1764: A higher current version of the LT1763, capable of supplying more output current. - TPS7A33: A low-dropout linear regulator with similar features, offering low noise and high power supply rejection. Embedded Modules - Power management modules with LDOs: Several power management systems exist that may use the LT1763IS8-3.3 as part of a larger PCB design. - Evaluation boards: Texas Instruments offers evaluation modules that include the LT1763 for prototyping and testing purposes. Q&A Q1: What is the drop-out voltage of the LT1763IS8-3.3? - A1: The LT1763IS8-3.3 has a typical dropout voltage of around 300 mV at full load. Q2: What is the maximum output current supported by the LT1763IS8-3.3? - A2: The LT1763IS8-3.3 can support output currents up to 1A. Q3: How does the quiescent current of the LT1763IS8-3.3 compare to other LDOs? - A3: The LT1763IS8-3.3 has a very low quiescent current, typically around 30 µA, making it suitable for energy-sensitive applications. Q4: In what scenarios would you prefer the LT1763IS8-3.3 over switching regulators? - A4: The LT1763IS8-3.3 is preferable in applications requiring low noise and ripple in the output, such as audio applications, RF circuits, or battery-powered devices where simplicity and low quiescent current are important. Q5: Can the LT1763IS8-3.3 be used for powering microcontrollers? - A5: Yes, the LT1763IS8-3.3 is an excellent choice for powering microcontrollers that operate at 3.3V, providing stable voltage and efficient power management.