Texas Instruments

REF5050AIDR

The REF5050AIDR is a low-dropout (LDO) linear voltage regulator from Texas Instruments. It is designed to provide a stable and low-noise output voltage from a wide range of input voltages. The device is available in a small SOT-23 package, making it suitable for space-constrained applications.

Key Features:

1. Ultra-low dropout voltage: The REF5050AIDR has an ultra-low dropout voltage of 170mV at 1A load, ensuring efficient operation even with low input voltages.
2. High input voltage range: The device can operate with input voltages ranging from 2.475V to 5.5V, making it suitable for a wide range of applications.
3. Low quiescent current: The REF5050AIDR has a low quiescent current of 3.5μA, which helps to minimize power consumption in battery-powered applications.
4. Precision output voltage: The device offers a precision output voltage of 1.25V with a typical accuracy of ±1%.
5. Low output noise: The REF5050AIDR has a low output noise of 50μVRMS, making it suitable for applications that require a clean and stable output voltage.
6. Short-circuit protection: The device features built-in short-circuit protection to prevent damage in case of a short circuit at the output.

Applications:

1. Portable devices: The REF5050AIDR is ideal for use in portable devices such as smartphones, tablets, and wearable devices, where space is limited, and efficient power management is crucial.
2. Battery-powered devices: The low quiescent current and low dropout voltage make the REF5050AIDR suitable for battery-powered applications, helping to extend battery life.
3. Industrial equipment: The device can be used in industrial equipment that requires a stable and low-noise power supply, such as sensors, controllers, and communication modules.
4. Medical devices: The REF5050AIDR can be used in medical devices that require a stable and precise output voltage, such as hearing aids, glucometers, and portable monitoring devices.
5. General-purpose power supply: The device can be used as a general-purpose LDO voltage regulator in a wide range of applications where a stable and low-noise output voltage is required.

In summary, the REF5050AIDR is a low-dropout, low-noise, and precision linear voltage regulator from Texas Instruments, suitable for a wide range of applications, including portable devices, battery-powered devices, industrial equipment, medical devices, and general-purpose power supply applications.