TPS54308 - Texas Instruments

TPS54308 Synchronous 350-kHz FCCM Step-Down Converter

The TPS54308 is a 4.5-V to 28-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation, and 5-ms internal soft start to reduce component count. By integrating the MOSFETs and employing the SOT-23 package, the TPS54308 achieves high power density and offers a small footprint on the .

Features

• 4.5-V to 28-V wide input voltage range
• Integrated 85-mΩ and 40-mΩ MOSFETs for 3-A, continuous output current
• Low 2-μA shutdown, 300-μA quiescent current
• Internal 5-mS soft start
• Fixed 350-kHz switching frequency
• Peak current mode control
• Internal loop compensation
• Overcurrent protection for both MOSFETs with hiccup mode protection
• Overvoltage protection
• Thermal shutdown
• SOT-23 (6) package
• Create a custom design using the TPS54308 with the WEBENCH® Power Designer 2 Applications
• 12-V, 24-V distributed power-bus supply
• Industry application
  – White goods
• Consumer appl.