STMicroelectronics

LDL40PURY

LDL40PURY Description

The LDL40PURY is a high-performance, low dropout linear voltage regulator (LDO) designed by STMicroelectronics, a leading manufacturer in the electronics industry. This device is specifically engineered to provide a stable and efficient power supply solution for a variety of applications. With a maximum input voltage of 40V and an adjustable output voltage range from 1.2V to 12V, the LDL40PURY is capable of delivering up to 200mA of output current. Its low quiescent current of 5 µA and a dropout voltage of only 1V at 200mA make it an ideal choice for applications requiring high efficiency and minimal power loss.

LDL40PURY Features

• Low Dropout Voltage: The LDL40PURY boasts a maximum dropout voltage of 1V at 200mA, ensuring high efficiency even at low input-to-output voltage differentials. This feature is particularly beneficial in battery-powered devices where extending battery life is crucial.
• Adjustable Output Voltage: With an adjustable output voltage range from 1.2V to 12V, the LDL40PURY offers flexibility to meet the specific voltage requirements of various electronic systems.
• High PSRR: The device features a high power supply rejection ratio (PSRR) of 65dB at 1kHz, which effectively filters out noise from the input power supply, ensuring a clean and stable output voltage.
• Protection Features: The LDL40PURY includes comprehensive protection features such as over-current, over-temperature, short-circuit, and under-voltage lockout (UVLO). These features enhance the reliability and robustness of the device, protecting it from potential damage due to abnormal operating conditions.
• Control Features: The regulator offers control features such as current limit, enable, and power good, providing users with additional control and monitoring capabilities.
• Surface Mount Packaging: The LDL40PURY is available in a surface mount package, making it suitable for compact and high-density PCB designs. The tape and reel (TR) packaging option facilitates automated assembly processes.

LDL40PURY Applications

The LDL40PURY is well-suited for a wide range of applications due to its high efficiency, low dropout voltage, and robust protection features. Some specific use cases include:

• Battery-Powered Devices: The low dropout voltage and low quiescent current make the LDL40PURY an excellent choice for portable devices such as smartphones, tablets, and wearable electronics, where battery life and efficiency are critical.
• Industrial Equipment: The high input voltage range and robust protection features make it suitable for industrial applications where reliability and durability are paramount.
• Telecommunications: The device can be used in various telecom equipment, including base stations and network routers, where stable and efficient power supply is essential.
• Automotive Electronics: The LDL40PURY can be utilized in automotive systems, such as infotainment systems and electronic control units, where high reliability and performance are required.

Conclusion of LDL40PURY

The LDL40PURY from STMicroelectronics is a versatile and high-performance low dropout linear voltage regulator that offers numerous advantages over similar models. Its low dropout voltage, adjustable output voltage, high PSRR, and comprehensive protection features make it an ideal solution for a variety of applications, particularly those requiring high efficiency and reliability. The surface mount packaging and availability in tape and reel format further enhance its suitability for modern, compact electronic designs. Whether used in battery-powered devices, industrial equipment, telecommunications, or automotive electronics, the LDL40PURY ensures stable and efficient power supply, making it a reliable choice for engineers and designers in the electronics industry.