onsemi

MC33375ST-1.8T3

MC33375ST-1.8T3 Description

The MC33375ST-1.8T3 is a linear regulator IC designed for power management applications, offering a fixed output voltage of 1.8V and a maximum output current of 300mA. Manufactured by onsemi, this device is housed in a Surface Mount SOT223 package, making it suitable for compact and efficient power supply designs. Despite its obsolete status, the MC33375ST-1.8T3 remains a reliable choice for applications requiring a stable and low dropout voltage regulator.

MC33375ST-1.8T3 Features

• Fixed Output Voltage: The MC33375ST-1.8T3 provides a stable output voltage of 1.8V, ensuring consistent power delivery to sensitive electronic components.
• Low Dropout Voltage: With a maximum dropout voltage of 0.5V at 300mA, this regulator can maintain regulation even when the input voltage is close to the output voltage, making it ideal for battery-powered applications.
• High PSRR: The regulator boasts a Power Supply Rejection Ratio (PSRR) of 75dB at 120Hz, effectively filtering out noise from the power supply and ensuring clean power delivery.
• Enable Control Feature: The enable pin allows for dynamic control of the regulator, enabling power-saving modes and efficient power management.
• Protection Features: Over-current and over-temperature protection features safeguard the device and connected components from damage, enhancing reliability and longevity.
• Low Quiescent Current: The device operates with a low quiescent current of 200 µA, minimizing power consumption during operation.
• Moisture Sensitivity Level: With an MSL of 1 (Unlimited), the MC33375ST-1.8T3 is suitable for use in a wide range of environmental conditions without the need for special handling.

MC33375ST-1.8T3 Applications

The MC33375ST-1.8T3 is well-suited for a variety of applications where stable and efficient power regulation is required. Specific use cases include:

• Battery-Powered Devices: Ideal for portable electronics where low dropout voltage and high PSRR are crucial for maintaining performance and extending battery life.
• Embedded Systems: Suitable for microcontroller and microprocessor-based systems that require a stable power supply with minimal noise.
• Communication Equipment: Provides clean power for sensitive RF and communication modules, ensuring reliable operation.
• Industrial Control Systems: The robust protection features and low quiescent current make it suitable for industrial applications where reliability and efficiency are paramount.

Conclusion of MC33375ST-1.8T3

The MC33375ST-1.8T3 is a versatile and reliable linear regulator IC that offers a range of performance benefits, including low dropout voltage, high PSRR, and robust protection features. Despite being marked as obsolete, its technical specifications and features make it a valuable component for applications requiring stable and efficient power management. The enable control feature and low quiescent current further enhance its suitability for a variety of applications, from battery-powered devices to industrial control systems. For designers seeking a proven and reliable power management solution, the MC33375ST-1.8T3 remains a compelling choice.