TPS54073

Typical Size 6,4 mm X 9,7 mm TPS54073 www.ti.com ............................................................................................................................................................................................ SLVS547 – FEBRUARY 2005 2.2 – 4 -V, 14-A SYNCHRONOUS BUCK CONVERTER WITH DISABLED SINKING DURING START-UP FEATURES 1 2 8-mΩ MOSFET Switches for High Efficiency at 14.5-A Peak Output Current Separate Low-Voltage Power Bus Disabled Current Sinking During Start-Up Adjustable Output Voltage Down to 0.9 V Wide PWM Frequency: Fixed 350 kHz, 550 kHz or Adjustable 280 kHz to 700 kHz Synchronizable to 700 kHz Load Protected by Peak Current Limit and Thermal Shutdown Integrated Solution Reduces Board Area and Total Cost APPLICATIONS Low-Voltage, High-Density Distributed Power Systems Point of Load Regulation for HighPerformance DSPs, FPGAs, ASICs, and Microprocessors Broadband, Networking, and Optical Communications Infrastructure Power PC Series Processors TYPICAL APPLICATION * ** Voltage Input 1 Voltage Input 2 PVIN PH TPS54073 BOOT VIN PGND VBIAS VSENSE AGND COMP DESCRIPTION As a member of the SWIFT™family of dc/dc regulators, the TPS54073 low-input voltage high-output current synchronous buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance and flexibility in choosi...