onsemi

NCP553SQ18T1

NCP553SQ18T1 Description

The NCP553SQ18T1 is a linear voltage regulator from onsemi, designed to provide a fixed output voltage of 1.8V with a maximum output current of 80mA. This regulator is part of the NOCAP™ series, known for its high performance and reliability in power management applications. The device operates with an input voltage range up to 12V and features a low dropout voltage of 1.6V at 80mA, ensuring efficient power conversion even under low input voltage conditions. The regulator is housed in a surface-mount SC82AB package, making it suitable for compact and space-constrained designs.

NCP553SQ18T1 Features

• Fixed Output Voltage: The NCP553SQ18T1 provides a stable output voltage of 1.8V, ideal for applications requiring a consistent power supply.
• High Efficiency: With a dropout voltage of 1.6V at 80mA, the regulator maintains high efficiency, minimizing power loss and heat generation.
• Low Quiescent Current: The device features a quiescent current of only 1µA, contributing to low power consumption and extended battery life in portable applications.
• Protection Features: Over-current and over-temperature protection ensure the regulator operates safely under various conditions, enhancing reliability and longevity.
• Surface Mount Packaging: The SC82AB package is designed for surface-mount technology, facilitating easy integration into modern PCB designs.
• Moisture Sensitivity Level 1: The MSL rating of 1 (Unlimited) indicates the device is suitable for a wide range of environmental conditions, including those with high humidity.
• Compliance: The NCP553SQ18T1 is REACH unaffected and classified under ECCN EAR99, ensuring compliance with international regulations.

NCP553SQ18T1 Applications

The NCP553SQ18T1 is well-suited for a variety of applications where a stable and efficient power supply is critical. Specific use cases include:

• Consumer Electronics: Ideal for portable devices such as smartphones, tablets, and wearables, where low power consumption and compact design are essential.
• Industrial Equipment: Suitable for powering sensors and microcontrollers in industrial environments, ensuring reliable operation under varying conditions.
• Medical Devices: The regulator's low quiescent current and high efficiency make it suitable for battery-powered medical devices, such as portable monitors and diagnostic tools.
• Telecommunications: Can be used in low-power communication modules and IoT devices, where power consistent supply and small form factor are required.

Conclusion of NCP553SQ18T1

The NCP553SQ18T1 is a robust and efficient linear voltage regulator that offers significant advantages over similar models. Its fixed 1.8V output, low dropout voltage, and low quiescent current make it an ideal choice for applications requiring high efficiency and minimal power loss. The device's compact SC82AB package and surface-mount design facilitate easy integration into modern electronic systems. Despite being marked as obsolete, the NCP553SQ18T1 remains a reliable option for designers seeking a high-performance power management solution.