Texas Instruments

ATL431BQDBZR

The ATL431BQDBZR is a high-precision, low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. It is designed to provide a stable and accurate output voltage to power sensitive electronic circuits.

Description:

The ATL431BQDBZR is a monolithic, low-dropout linear regulator that operates from an input voltage range of 4.75V to 60V. It features a precision reference and an internal compensation network, which allows it to provide a highly stable and accurate output voltage with low output noise. The device is available in a small QFN package, making it suitable for space-constrained applications.

Features:

1. Ultra-low dropout voltage: The ATL431BQDBZR has a dropout voltage as low as 100mV, which allows it to maintain a stable output voltage even under low input voltage conditions.
2. High precision output voltage: The device offers an output voltage accuracy of ±1%, which is suitable for applications that require a high level of precision.
3. Low quiescent current: The quiescent current of the ATL431BQDBZR is typically 70µA, which makes it suitable for battery-powered applications.
4. Internal soft-start: The device features an internal soft-start circuit that helps to minimize inrush current and reduce output voltage overshoot during startup.
5. Thermal shutdown protection: The ATL431BQDBZR has an integrated thermal shutdown protection feature that protects the device from overheating.

Applications:

The ATL431BQDBZR is suitable for a wide range of applications that require a stable and accurate voltage source. Some of the common applications include:

1. Portable electronics: The low quiescent current and low dropout voltage make the ATL431BQDBZR ideal for battery-powered devices, such as smartphones, tablets, and wearable devices.
2. Industrial equipment: The high precision and stability of the output voltage make the ATL431BQDBZR suitable for industrial applications, such as motor controllers and sensor interfaces.
3. Medical equipment: The device's low output noise and high accuracy make it suitable for powering sensitive medical equipment, such as hearing aids and medical sensors.
4. Automotive electronics: The ATL431BQDBZR can be used in automotive applications, such as infotainment systems and advanced driver-assistance systems (ADAS), where a stable and accurate voltage source is required.
5. Telecommunication equipment: The device's low dropout voltage and high precision make it suitable for powering sensitive telecommunication equipment, such as routers and switches.

In summary, the ATL431BQDBZR is a high-precision, low-dropout linear voltage regulator that offers excellent stability, accuracy, and low quiescent current. It is suitable for a wide range of applications, including portable electronics, industrial equipment, medical equipment, automotive electronics, and telecommunication equipment.