onsemi

MC33167T

MC33167T Description

The MC33167T from onsemi is a versatile adjustable switching voltage regulator designed for high-efficiency power conversion in demanding applications. This buck/boost regulator supports input voltages ranging from 7.5V to 40V and delivers a robust 5.5A switching current, making it suitable for both step-down (buck) and step-up (boost) configurations. The output voltage is adjustable, with a minimum fixed reference of 5.05V and a maximum switch voltage of 40V, providing flexibility for diverse power supply designs. Operating at a 72kHz switching frequency, it balances efficiency and noise performance. Housed in a TO-220-5 through-hole package, this regulator is ideal for industrial and automotive systems requiring reliable power management.

MC33167T Features

• Wide Input Range (7.5V–40V): Supports variable power sources, including automotive and industrial supplies.
• High Output Current (5.5A): Capable of driving high-load applications with minimal dropout.
• Adjustable Output (5.05V–40V): Configurable for positive or negative output topologies.
• Buck/Boost Topology: Dual-mode operation for step-down or step-up voltage conversion.
• 72kHz Switching Frequency: Optimized for efficiency and reduced EMI.
• Non-Synchronous Rectification: Simplifies design while maintaining performance.
• Robust Packaging (TO-220-5): Suitable for through-hole mounting in harsh environments.

MC33167T Applications

The MC33167T excels in scenarios requiring high-current, adjustable voltage regulation:

• Automotive Systems: Power management for infotainment, lighting, and ECUs.
• Industrial Equipment: Motor drives, PLCs, and instrumentation power supplies.
• Telecom Infrastructure: Base stations and network hardware requiring stable voltage conversion.
• Renewable Energy: Solar/wind power conditioning and battery charging systems.
• Legacy Electronics: Upgrading older designs needing obsolete component replacements.

Conclusion of MC33167T

The MC33167T stands out for its wide input range, high current capability, and flexible topology, making it a reliable choice for engineers tackling complex power supply challenges. While marked as obsolete, its performance and durability ensure continued relevance in legacy and niche applications. For systems demanding adjustable, high-efficiency regulation in harsh environments, this regulator remains a proven solution.