Texas Instruments

ATL431LIBQDBZRQ1  

Voltage References

The ATL431LIBQDBZRQ1 is a high-precision, low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. This device is designed to provide a stable and accurate output voltage to power sensitive electronic circuits.

Description:

The ATL431LIBQDBZRQ1 is a low-dropout linear regulator with an input voltage range of 4.75V to 60V and an output voltage range of 0.8V to 55V. The device features a quiescent current of only 1.1μA, making it ideal for battery-powered applications where low power consumption is critical.

Features:

1. High precision output voltage: The ATL431LIBQDBZRQ1 provides an output voltage accuracy of ±1%, ensuring stable and reliable power supply to sensitive electronic circuits.
2. Low dropout voltage: The device has a low dropout voltage of 300mV at a 1A load, allowing it to operate efficiently even with a low input voltage.
3. Low quiescent current: The quiescent current of the device is only 1.1μA, making it suitable for battery-powered applications.
4. Wide input voltage range: The input voltage range of 4.75V to 60V allows the device to be used in a variety of applications with different power supply requirements.
5. Adjustable output voltage: The output voltage can be easily adjusted using external resistors, providing flexibility in designing power supply circuits.
6. Thermal shutdown protection: The device features thermal shutdown protection to prevent damage due to overheating.

Applications:

1. Portable electronic devices: The low quiescent current and high precision output voltage make the ATL431LIBQDBZRQ1 ideal for powering portable electronic devices such as smartphones, tablets, and wearables.
2. Medical equipment: The stable and accurate output voltage provided by the ATL431LIBQDBZRQ1 is essential for powering sensitive medical equipment, such as hearing aids and portable monitoring devices.
3. Industrial control systems: The device can be used in industrial control systems to provide a stable power supply to various electronic components.
4. Automotive electronics: The wide input voltage range and low dropout voltage make the ATL431LIBQDBZRQ1 suitable for automotive electronics, such as infotainment systems and engine control modules.
5. Telecommunication equipment: The high precision and low quiescent current of the device make it suitable for powering sensitive telecommunication equipment, such as routers and modems.

In summary, the ATL431LIBQDBZRQ1 is a high-precision, low-dropout linear voltage regulator that offers a stable and accurate output voltage for various applications, including portable electronic devices, medical equipment, industrial control systems, automotive electronics, and telecommunication equipment. Its low quiescent current, wide input voltage range, and adjustable output voltage make it a versatile and efficient choice for power supply design.

ATL431LIBQDBZRQ1 Documents

Download datasheets and manufacturer documentation for ATL431LIBQDBZRQ1

PCN :

Product Change Notification 2024-02-05 (PDF)      

Application Notes :

Designing with the ATL431LI       Extending the Input Voltage Range of the LM5180-Q1 PSR Flyback for VDA320(LV148)       ATL43xLI-Q1 Functional Safety FIT Rate Failure Mode Distribution and Pin FMA       Implementing Voltage References and Supervisors Into Your Traction Inverter Desi       High-power low-cost discrete linear pre-regulator for automotive rear lights      

SPICE Models :

TL431LI and ATL431LI PSpice Average Model       ATL431LI PSpice Transient Model       TL431LI and ATL431LI Unencrypted PSpice Average Model       ATL431LI Unencrypted PSpice Transient Model