STMicroelectronics MC34063ACN Step-Up/Down/Inverting Switching Regulator

The MC34063ACN is a versatile switching regulator integrated circuit from STMicroelectronics designed for DC to DC converter applications. This monolithic control circuit delivers all the necessary features to implement step-up (boost), step-down (buck), and voltage-inverting applications with a minimum number of external components.

Key Features

• Output Switch Current: The device can handle an output switch current of up to 1.5 A without any need for external transistors, making it suitable for a wide range of applications.
• Adjustable Output Voltage: The output voltage can be adjusted through the use of external resistors, providing design flexibility to meet specific requirements.
• Frequency Operation: It operates at a fixed frequency, which is set by an external resistor and capacitor, typically at 100 kHz.
• High Precision: The voltage reference is accurate to ±2%, ensuring reliable and consistent output.
• Thermal Shutdown: The built-in thermal shutdown feature provides protection against excessive power dissipation and high-temperature conditions.
• Current Limiting: The device is equipped with current limiting and is designed to be robust against output short circuits.

Applications

The MC34063ACN is a highly adaptable component suitable for a diverse range of applications, including:

• DC-DC converters for personal computers, laptops, and handheld devices
• Automotive applications for power regulation
• Battery chargers and power management in portable devices
• LED drivers and power supplies for consumer electronics

Package and Availability

The MC34063ACN is available in an 8-pin plastic dual-in-line package (DIP-8), which is widely used and easily integrated into a variety of circuit boards. STMicroelectronics ensures the availability of this IC, catering to both small-scale projects and large-volume industrial requirements.

Conclusion

With its ease of use, reliability, and versatility, the MC34063ACN from STMicroelectronics stands out as an essential component for designers looking to create efficient power solutions. Its ability to handle various voltage conversion scenarios with minimal external parts makes it an economical choice for a wide array of electronic applications.