onsemi

NCP5663DS18G

NCP5663DS18G Description

The NCP5663DS18G is a high-performance linear voltage regulator designed by onsemi, a leading manufacturer in the electronics industry. This regulator is part of the Linear & Switching Voltage Regulators category and is specifically designed to provide a fixed output voltage of 1.8V with a maximum output current of 3A. It operates with an input voltage range up to 9V, making it suitable for a variety of applications requiring stable and reliable power supply solutions.

The NCP5663DS18G features a dropout voltage of 1.3V at 3A, ensuring efficient operation even under high load conditions. Its quiescent current is a low 3 mA, contributing to minimal power consumption during operation. The regulator also boasts a high power supply rejection ratio (PSRR) of 70dB to 65dB across the frequency range of 120Hz to 1kHz, effectively filtering out noise and maintaining output voltage stability.

The NCP5663DS18G is housed in a D2PAK-5 package, which is ideal for surface mount applications and offers excellent thermal performance. It includes an enable control feature, allowing for dynamic control of the regulator’s operation. Additionally, it features over-current and over-temperature protection, ensuring safe operation under various conditions.

NCP5663DS18G Features

• Fixed Output Voltage: Provides a stable 1.8V output voltage, suitable for applications requiring precise voltage regulation.
• High Output Current: Capable of delivering up to 3A, making it suitable for high-current applications.
• Low Dropout Voltage: A maximum dropout voltage of 1.3V at 3A ensures efficient operation even at high load currents.
• Low Quiescent Current: Consumes only 3 mA in quiescent state, minimizing power loss.
• High PSRR: Offers a high power supply rejection ratio of 70dB to 65dB across the frequency range of 120Hz to 1kHz, ensuring stable output voltage.
• Enable Control Feature: Allows dynamic control of the regulator’s operation, enhancing flexibility in system design.
• Protection Features: Includes over-current and over-temperature protection to ensure safe operation.
• Surface Mount Package: The D2PAK-5 package is suitable for surface mount applications and provides excellent thermal performance.
• Compliance: The NCP5663DS18G is REACH unaffected and ROHS3 compliant, meeting environmental and regulatory standards.

NCP5663DS18G Applications

The NCP5663DS18G is ideal for a variety of applications where stable and reliable power supply is critical. Its high output current and low dropout voltage make it suitable for high-current applications such as:

• Power Supply Units: Provides a stable and efficient power supply for various electronic devices.
• Consumer Electronics: Ideal for powering devices that require a fixed 1.8V supply and high current.
• Industrial Equipment: Suitable for industrial applications where reliable power supply and thermal performance are essential.
• Telecommunications: Can be used in telecom equipment that requires precise voltage regulation and high current handling.

Conclusion of NCP5663DS18G

The NCP5663DS18G is a robust and efficient linear voltage regulator designed to meet the demands of high-current applications. Its fixed 1.8V output voltage, low dropout voltage, and high PSRR make it an excellent choice for applications requiring stable and reliable power supply. The enable control feature and protection mechanisms further enhance its versatility and safety. Despite being marked as obsolete, the NCP5663DS18G remains a reliable option for engineers and designers seeking a high-performance linear regulator.