The MC33063AB is a versatile switching regulator integrated circuit produced by STMicroelectronics, a leader in semiconductor solutions. This device is designed to facilitate the easy implementation of both step-up (boost), step-down (buck), and voltage-inverting applications with a minimum number of external components.

Key Features

• Wide Input Voltage Range: The MC33063AB operates with an input voltage range from 3 V to 40 V, making it suitable for a broad range of power supply applications.
• Adjustable Output Voltage: This device allows the user to set the output voltage to a desired level using external resistors, offering great flexibility in design.
• High Precision Reference: A 1.5% tolerance reference voltage ensures accurate output regulation, which is critical for sensitive electronic components.
• Switching Frequency: The internal oscillator of the MC33063AB operates at a nominal frequency of 100 kHz, which is a good balance between efficiency and the size of external components.
• Output Switch Current: The integrated output switch can handle currents up to 1.5 A, allowing the IC to drive moderately high-power loads.
• Thermal Shutdown and Current Limiting: Built-in thermal shutdown and current limiting features protect the device from damage due to overheating and overcurrent conditions.
• Low Standby Current: The quiescent current is low, which enhances the overall efficiency, especially in battery-powered applications.

Applications

The MC33063AB is widely used in a variety of applications where an efficient power conversion is required. It is ideal for battery-powered devices, DC-DC converters, automotive applications, power supplies for portable devices, and any circuit where a robust and reliable voltage regulation is necessary.

Package Options and Quality

The MC33063AB is available in multiple package options, including DIP-8 and SO-8, providing flexibility for different PCB layouts and space constraints. STMicroelectronics is committed to high-quality standards, ensuring that each device meets rigorous reliability and performance criteria.