Texas Instruments

UCC3585M

UCC3585M Description

The UCC3585M from Texas Instruments is a high-performance buck topology DC-DC switching controller designed for precision power management applications. Operating within a 3V to 5.5V supply range, it delivers a transistor driver output with a positive configuration, supporting switching frequencies up to 500kHz. This obsolete but robust IC integrates synchronous rectification, enhancing efficiency in power conversion systems. Packaged in a 16SSOP tube, it is RoHS3 compliant and rated for 0°C to 85°C operating temperatures, making it suitable for industrial and commercial environments.

UCC3585M Features

• Advanced Control Features: Includes current limit, enable, frequency control, and soft start for optimized power sequencing and protection.
• High Efficiency: Synchronous rectifier support minimizes power losses, ideal for battery-powered or energy-sensitive designs.
• Wide Input Range: 3V–5.5V compatibility enables use in diverse low-voltage systems.
• 100% Duty Cycle: Ensures maximum power delivery under heavy loads.
• Compact & Reliable: MSL 2 (1 Year) moisture sensitivity and surface-mount design suit automated assembly.
• Regulatory Compliance: REACH unaffected and EAR99 classified for global deployment.

UCC3585M Applications

• Portable Electronics: Power management in handheld devices due to low-voltage operation and efficiency.
• Industrial Systems: Motor control, PLCs, and sensors benefiting from robust thermal performance.
• Telecom Infrastructure: Voltage regulation in base stations and networking equipment.
• Automotive Subsystems: Non-critical 12V/5V conversion where moderate temperature ranges apply.

Conclusion of UCC3585M

While obsolete, the UCC3585M remains a technically compelling choice for designers needing a synchronous buck controller with precise control features. Its 500kHz switching frequency, integrated protections, and compact form factor make it ideal for space-constrained, efficiency-driven applications. Engineers evaluating legacy or cost-sensitive projects may find this IC a viable solution despite its discontinued status.

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