onsemi

MC33275DT-3.3RK

MC33275DT-3.3RK Description

The MC33275DT-3.3RK is a fixed output linear voltage regulator designed to deliver a stable 3.3V output voltage with a maximum output current of 300mA. Manufactured by onsemi, this regulator is housed in a DPAK package, which is suitable for surface mount applications. Despite its obsolete status, the MC33275DT-3.3RK remains a reliable choice for applications requiring a compact and efficient power solution.

MC33275DT-3.3RK Features

• Output Type: Fixed at 3.3V, ensuring a stable power supply for sensitive electronic components.
• Input Voltage Range: Capable of handling input voltages up to 13V, providing flexibility in power source selection.
• Output Current: Delivers a consistent 300mA output current, suitable for a variety of low-power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.5V at 300mA, the MC33275DT-3.3RK maintains high efficiency even at low input-to-output voltage differentials.
• Low Quiescent Current: Consumes only 200 µA in quiescent mode, making it ideal for battery-powered devices where power conservation is critical.
• High PSRR: Achieves a power supply rejection ratio of 75dB at 120Hz, ensuring minimal noise and ripple in the output voltage.
• Protection Features: Equipped with over-current and over-temperature protection, safeguarding both the regulator and connected components from damage.
• Mounting Type: Surface mount design, compatible with modern PCB assembly processes.
• Package: Supplied in a DPAK package, which offers a robust and thermally efficient solution.
• Moisture Sensitivity Level (MSL): MSL 1 (Unlimited), indicating the device is not moisture-sensitive and can be stored without special precautions.
• REACH Status: REACH Unaffected, ensuring compliance with environmental and safety regulations.

MC33275DT-3.3RK Applications

The MC33275DT-3.3RK is well-suited for a range of applications where a stable and efficient power supply is essential. Its low dropout voltage and high PSRR make it ideal for:

• Battery-Powered Devices: The low quiescent current and high efficiency ensure extended battery life.
• Consumer Electronics: Provides a reliable power source for devices such as smartphones, tablets, and portable gaming consoles.
• Industrial Equipment: Suitable for applications requiring a stable power supply, such as sensors, controllers, and embedded systems.
• Automotive Electronics: Ideal for in-vehicle systems where a compact and efficient regulator is needed.

Conclusion of MC33275DT-3.3RK

The MC33275DT-3.3RK is a robust and efficient linear voltage regulator that offers a stable 3.3V output with a maximum current of 300mA. Its low dropout voltage, high PSRR, and low quiescent current make it an excellent choice for applications where power efficiency and noise reduction are critical. Despite being marked as obsolete, the MC33275DT-3.3RK remains a reliable and cost-effective solution for designers seeking a compact and efficient power management component.