Experience High Efficiency and Fast Transient Response with the TMI3252 Step-Down DC-DC Converter

The TMI3252 is a high-efficiency 600kHz step-down DC-DC converter designed to provide efficient power conversion with fast transient response. With its constant on-time (COT) control mode and synchronous operation, this converter delivers reliable performance in a wide range of power applications.

Featuring low RDS(ON) internal FETs of 140mΩ/70mΩ, the TMI3252 minimizes conduction losses and maximizes power efficiency. Its high-efficiency synchronous mode operation further enhances power conversion, ensuring optimal power delivery with reduced losses.

Wide Input Range and Compact Design for Versatile Power Applications

The wide input range of 4.5V to 18V enables the TMI3252 to accommodate various input voltage sources, making it suitable for a wide range of applications. Its output voltage of 0.8V and 600kHz switching frequency contribute to low output voltage ripple and allow for small external inductor and capacitor sizes, optimizing the overall design.

The TMI3252 utilizes a COT architecture, providing fast transient response in high-voltage buck applications. This feature ensures stable and reliable operation even during sudden load changes or voltage variations.

With integrated internal compensation, the TMI3252 simplifies the design process and ensures stability with low equivalent series resistance (ESR) ceramic output capacitors. It incorporates various protection mechanisms, including overcurrent protection with hiccup mode, thermal shutdown, inrush current limiting, soft-start, and built-in input overvoltage protection, ensuring safe operation and protection against potential faults.

Housed in a compact and ROHS-compliant 6-pin SOT23-6 package, the TMI3252 offers convenience and versatility in power system designs.

Product Features:

• Low RDS(ON) internal FETs: 140mΩ/70mΩ
• High-efficiency synchronous mode operation
• Wide input range: 4.5V to 18V
• Output voltage: 0.8V
• 600kHz switching frequency
• Up to 2A output current
• COT control for fast transient response
• Power-saving mode at light load
• Integrated internal compensation
• Stable with low ESR ceramic output capacitors
• Overcurrent protection with hiccup mode
• Thermal shutdown
• Inrush current limiting and soft-start
• Built-in input overvoltage protection