STMicroelectronics

MC33172DT

The MC33172DT is a high-efficiency, step-down (buck) switching regulator from STMicroelectronics. It is designed to provide a stable output voltage from a wide range of input voltages, making it suitable for a variety of applications.

Description:

The MC33172DT is a monolithic integrated circuit that provides a highly efficient step-down converter with a wide input voltage range. It features a high-frequency synchronous buck converter topology, which allows for high efficiency and low component count. The device is available in a thermally enhanced QFN package, which provides excellent thermal performance and ease of use.

Features:

• High efficiency: The MC33172DT offers high efficiency of up to 96%, which helps to reduce power dissipation and improve overall system performance.
• Wide input voltage range: The device can operate from input voltages as low as 2.5V and as high as 38V, making it suitable for a wide range of applications.
• High output current: The MC33172DT can deliver output currents up to 3A, making it suitable for powering high-current loads.
• Low quiescent current: The device has a low quiescent current of 35µA in normal operation mode, which helps to minimize power consumption in battery-powered applications.
• High-frequency operation: The MC33172DT operates at a high frequency of up to 2MHz, which allows for the use of smaller external components and a more compact solution.
• Protection features: The device includes over-current protection, over-voltage protection, and thermal shutdown protection to ensure safe and reliable operation.

Applications:

The MC33172DT is suitable for a wide range of applications that require a stable and efficient power supply, including:

• Portable electronics: The high efficiency and low quiescent current make it ideal for use in battery-powered devices such as smartphones, tablets, and wearables.
• Industrial control systems: The wide input voltage range and high output current make it suitable for use in industrial control systems that require a stable power supply.
• Automotive applications: The device's high efficiency and wide input voltage range make it suitable for use in automotive applications such as infotainment systems and power management systems.
• Medical devices: The MC33172DT can be used in medical devices that require a stable and efficient power supply, such as portable medical instruments and wearable medical devices.

Overall, the MC33172DT is a versatile and efficient step-down switching regulator that offers a wide range of features and applications. Its high efficiency, wide input voltage range, and high output current make it an ideal choice for a variety of power supply applications.