onsemi

MC33067DWG

MC33067DWG Description

The MC33067DWG from onsemi is a high-performance flyback DC-DC switching controller designed for precision power management in demanding applications. Housed in a 16-SOIC package, this obsolete but robust IC delivers transistor driver outputs with positive, isolation-capable configuration, supporting input voltages from 8.6V to 20V. Operating at a switching frequency of 2.05MHz, it ensures efficient power conversion with minimal external components. The device features two outputs and single-phase operation, making it suitable for compact designs. Although marked as obsolete, its REACH-unaffected status ensures compliance with environmental regulations, while its MSL 3 (168 hours) rating guarantees reliability in moisture-sensitive environments.

MC33067DWG Features

• Topology: Optimized for flyback converters, ensuring high efficiency in isolated power supplies.
• Control Features: Includes enable/disable and soft-start functionality for smooth power-up sequences.
• Voltage Range: Wide 8.6V–20V supply range accommodates diverse industrial and automotive applications.
• Switching Frequency: Fixed 2.05MHz operation reduces passive component size, ideal for space-constrained designs.
• Output Configuration: Positive, isolation-capable transistor driver outputs enhance flexibility in high-voltage designs.
• Compliance: EAR99 and HTSUS 8542.31.0001 classifications simplify global logistics.

MC33067DWG Applications

• Isolated Power Supplies: Ideal for telecom, industrial, and medical equipment requiring galvanic isolation.
• Automotive Systems: Suitable for infotainment, lighting, and sensor modules due to its wide voltage range.
• LED Drivers: Efficiently powers LED arrays with precise control via soft-start and enable features.
• Auxiliary Power Modules: Used in servers, networking gear, and embedded systems for secondary voltage regulation.

Conclusion of MC33067DWG

The MC33067DWG stands out for its high-frequency operation, isolation capability, and robust control features, making it a reliable choice for legacy or long-lifecycle designs. While obsolete, its performance in flyback topologies and compliance with environmental standards ensure continued relevance in niche applications. Engineers seeking a proven, compact solution for isolated power conversion will find this IC a compelling option.