STMicroelectronics

LDQ40PURY  

Linear & Switching Voltage Regulators

LDQ40PURY Description

The LDQ40PURY is a high-performance linear regulator designed for demanding automotive applications. Manufactured by STMicroelectronics, this device is part of the Power Management Integrated Circuits (PMIC) category and offers a robust solution for voltage regulation. With an adjustable output type, the LDQ40PURY can provide a voltage range from 1.2V to 12V, making it highly versatile for various electronic systems. The regulator supports a maximum input voltage of 40V and can deliver up to 250mA of output current, ensuring reliable power delivery even under varying load conditions.

LDQ04PURY Features

• Adjustable Output Voltage: The LDQ40PURY features an adjustable output voltage range from 1.2V to 12V, providing flexibility for different application requirements.
• High Input Voltage Capability: With a maximum input voltage of 40V, this regulator is well-suited for automotive environments where voltage fluctuations are common.
• Low Dropout Voltage: The maximum dropout voltage of 1V at 250mA ensures efficient operation even at low input-to-output voltage differentials.
• Low Quiescent Current: The regulator operates with a low quiescent current of 5µA, minimizing power consumption and extending battery life in portable applications.
• High PSRR: The Power Supply Rejection Ratio (PSRR) of 60dB at 1kHz helps in reducing noise and ripple, ensuring clean power delivery to sensitive circuits.
• Protection Features: The LDQ40PURY includes over-current, over-temperature, and short-circuit protection, enhancing reliability and safeguarding against potential faults.
• Control Features: The regulator offers current limit and enable control features, providing additional control options for system designers.
• Automotive Grade: Certified for automotive use, the LDQ40PURY meets stringent industry standards, ensuring high reliability and performance in harsh environments.
• Surface Mount Package: The surface mount package type facilitates easy integration into compact designs, making it suitable for space-constrained applications.

LDQ40PURY Applications

The LDQ40PURY is ideal for a variety of automotive applications where reliable and efficient power management is crucial. Its wide input voltage range and adjustable output make it suitable for powering electronic control units (ECUs), infotainment systems, and other automotive electronics. The low dropout voltage and high PSRR ensure stable and clean power delivery, even in the presence of voltage sags and noise. The regulator's low quiescent current and protection features make it an excellent choice for always-on systems, where power efficiency and reliability are paramount.

Conclusion of LDQ40PURY

The LDQ40PURY from STMicroelectronics is a versatile and reliable linear regulator designed to meet the demanding requirements of automotive applications. Its adjustable output voltage, high input voltage capability, and low dropout voltage make it a robust solution for a wide range of electronic systems. The inclusion of advanced protection and control features, combined with its low quiescent current and high PSRR, ensure efficient and reliable operation. Whether powering critical automotive electronics or other sensitive applications, the LDQ40PURY stands out as a high-performance option, offering significant advantages over similar models in the market.

LDQ40PURY Documents

Download datasheets and manufacturer documentation for LDQ40PURY

Datasheets :

LDQ40