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NCP4685ESQ33T1G

NCP4685ESQ33T1G Description

The NCP4685ESQ33T1G is a linear regulator IC designed for power management applications, offering a fixed output voltage of 3.3V and a maximum output current of 150mA. Manufactured by onsemi, this device is part of the Power Management (PMIC) category and is housed in a Surface Mount package, specifically the SC82AB variant. Despite being marked as obsolete, the NCP4685ESQ33T1G remains a reliable choice for applications requiring a stable and efficient power supply.

NCP4685ESQ33T1G Features

• Output Type: Fixed, ensuring a consistent 3.3V output voltage.
• Input Voltage Range: Operates within a maximum input voltage of 5.25V, providing flexibility in power source selection.
• Output Current: Capable of delivering up to 150mA, suitable for a variety of low-power applications.
• Number of Regulators: Single regulator design simplifies circuit design and reduces component count.
• Output Configuration: Positive output configuration, ideal for standard power supply requirements.
• Voltage Dropout: A low dropout voltage of 0.32V at 150mA ensures high efficiency, especially in low-input voltage scenarios.
• Quiescent Current: An extremely low quiescent current of 1.5 µA minimizes power consumption during idle states.
• PSRR: A high Power Supply Rejection Ratio (PSRR) of 30dB at 1kHz helps in filtering out noise from the input power supply.
• Control Features: Includes an enable feature, allowing for dynamic control of the regulator's operation.
• Protection Features: Over-current protection ensures the device's longevity and reliability.
• Moisture Sensitivity Level (MSL): MSL 1 (Unlimited) indicates the device is suitable for a wide range of environmental conditions.
• Package: Tape & Reel (TR) packaging facilitates easy handling and integration into automated assembly processes.
• REACH Status: REACH Unaffected, ensuring compliance with environmental and safety regulations.

NCP4685ESQ33T1G Applications

The NCP4685ESQ33T1G is ideal for applications where a stable and efficient power supply is critical. Its low dropout voltage and high PSRR make it suitable for battery-powered devices and low-power systems where input voltage fluctuations are common. The enable feature allows for dynamic control, making it an excellent choice for applications requiring power-saving modes. Specific use cases include:

• Battery-Powered Devices: Ideal for portable electronics where battery efficiency and longevity are paramount.
• Low-Power Systems: Suitable for microcontrollers, sensors, and other low-power applications requiring a stable 3.3V supply.
• Embedded Systems: Provides a reliable power solution for embedded systems in various industrial and consumer applications.
• Automotive Electronics: The device's robustness and low quiescent current make it suitable for automotive applications where power efficiency and reliability are crucial.

Conclusion of NCP4685ESQ33T1G

The NCP4685ESQ33T1G is a versatile linear regulator IC that offers a balance of performance and efficiency. Its low dropout voltage, high PSRR, and low quiescent current make it an attractive option for applications requiring a stable and efficient power supply. Despite its obsolete status, the NCP4685ESQ33T1G remains a reliable choice for engineers and designers looking for a proven solution in power management. Its unique features, such as the enable control and over-current protection, provide added flexibility and reliability, making it a standout choice in its category.