onsemi

MC33761SNT1-028

MC33761SNT1-028 Description

The MC33761SNT1-028 is a linear regulator IC designed for power management applications, offering a fixed output voltage of 2.8V and a maximum output current of 80mA. Manufactured by onsemi, this device is housed in a 5TSOP package and is suitable for surface mount applications. Despite being marked as obsolete, it remains a viable option for specific legacy systems and applications where its unique features are required. The regulator is REACH unaffected, ensuring compliance with environmental and safety standards.

MC33761SNT1-028 Features

• Output Type: Fixed, providing a stable 2.8V output voltage.
• Input Voltage Range: Capable of handling input voltages up to 12V, making it suitable for a variety of power supply scenarios.
• Output Current: Delivers a consistent 80mA output current, ideal for low-power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.25V at 80mA, it ensures high efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: Features a low quiescent current of 180 µA, minimizing power consumption during operation.
• High PSRR: Offers a high power supply rejection ratio (PSRR) of 70dB at 1kHz, ensuring minimal noise and ripple in the output voltage.
• Control Features: Includes an enable function, allowing for precise control over the regulator's operation.
• Protection Features: Equipped with antisaturation, over-current, and over-temperature protection, ensuring robustness and reliability in various operating conditions.
• Moisture Sensitivity Level: MSL 1 (Unlimited), suitable for a wide range of manufacturing environments.
• Mounting Type: Surface mount, compatible with modern PCB assembly techniques.
• Package Type: Tape & Reel (TR), facilitating efficient handling and placement during manufacturing processes.

MC33761SNT1-028 Applications

The MC33761SNT1-028 is well-suited for applications requiring a stable and efficient power supply with a fixed output voltage. Its low dropout voltage and high PSRR make it ideal for battery-powered devices, portable electronics, and low-power embedded systems. Specific use cases include:

• Battery-Powered Devices: Provides a reliable power source for devices that operate on limited battery capacity, ensuring long battery life and stable performance.
• Portable Electronics: Suitable for applications such as handheld devices, wearables, and IoT sensors where low power consumption and high efficiency are critical.
• Embedded Systems: Ideal for microcontroller-based systems, where the regulator's low quiescent current and high PSRR contribute to overall system efficiency and reliability.
• Legacy Systems: Given its obsolete status, it remains a valuable component for maintaining and upgrading older systems where compatibility with existing designs is essential.

Conclusion of MC33761SNT1-028

The MC33761SNT1-028 is a versatile linear regulator IC that offers a combination of high efficiency, low dropout voltage, and robust protection features. Despite its obsolete status, it remains a valuable component for specific applications where its unique attributes are required. Its low quiescent current and high PSRR make it an excellent choice for low-power, battery-operated devices and portable electronics. For engineers and designers working with legacy systems or requiring a stable, low-power solution, the MC33761SNT1-028 provides a reliable and efficient power management option.