STMicroelectronics

ST1L02PU18R

ST1L02PU18R Description

The ST1L02PU18R is a linear regulator IC designed by STMicroelectronics, a leading manufacturer in the semiconductor industry. This device is part of the Power Management IC (PMIC) category and is specifically tailored for applications requiring a fixed output voltage of 1.8V and a maximum output current of 1A. The ST1L02PU18R operates within an input voltage range up to 10V, making it suitable for a variety of electronic systems. Despite being marked as obsolete, it remains a reliable choice for legacy designs and specific applications where its unique features are advantageous.

ST1L02PU18R Features

• Fixed Output Voltage: The ST1L02PU18R provides a stable 1.8V output voltage, ensuring consistent power supply to connected devices.
• High Efficiency: With a dropout voltage of 1.6V at 1A, this regulator efficiently converts input voltage to the desired output, minimizing power loss.
• Low Quiescent Current: The quiescent current of 650 µA ensures minimal power consumption during operation, enhancing overall system efficiency.
• Over Current and Over Temperature Protection: These protection features safeguard the IC and connected components from potential damage due to excessive current or temperature.
• High Power Supply Rejection Ratio (PSRR): At 75dB (120Hz), the ST1L02PU18R effectively filters out noise from the input power supply, ensuring clean output voltage.
• Wide Operating Temperature Range: The operating temperature range of 0°C to 125°C makes this IC suitable for applications in various environmental conditions.
• Surface Mount Packaging: The surface mount type (SMD) package allows for compact and reliable integration into modern PCB designs.
• Compliance: The ST1L02PU18R is REACH unaffected and ROHS3 compliant, adhering to stringent environmental and safety standards.

ST1L02PU18R Applications

The ST1L02PU18R is ideal for applications that require a stable and efficient power supply. Some specific use cases include:

• Embedded Systems: Providing a reliable power source for microcontrollers, sensors, and other low-power components.
• Consumer Electronics: Suitable for devices such as smartphones, tablets, and portable electronics that demand efficient power management.
• Industrial Equipment: Ideal for industrial control systems and IoT devices operating in harsh environments.
• Automotive Electronics: Given its wide operating temperature range, it can be used in automotive applications where reliability and efficiency are paramount.

Conclusion of ST1L02PU18R

The ST1L02PU18R is a robust linear regulator IC that offers a combination of high efficiency, low quiescent current, and comprehensive protection features. Despite its obsolete status, its unique attributes make it a valuable component for specific applications. Its compliance with environmental and safety standards ensures it meets the requirements of modern electronics manufacturing. For designers and engineers looking for a reliable power management solution, the ST1L02PU18R remains a viable option, especially in legacy systems and specialized applications.