TPS54110-Q1

Typical Size (6,3 mm x 6,4 mm) www.ti.com TPS54110−Q1 SLVS837 − JULY 2008 3-V TO 6-V INPUT, 1.5-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT) FEATURES D Qualified for Automotive Applications D Integrated MOSFET Switches for High Efficiency at 1.5-A Continuous Output Source or Sink Current D 0.9-V to 3.3-V Adjustable Output Voltage With 1% Accuracy D Externally Compensated for Design Flexibility D Fast Transient Response D Wide PWM Frequency: Fixed 350 kHz, 550 kHz, or Adjustable 280 kHz to 700 kHz D Load Protected by Peak Current Limit and Thermal Shutdown D Integrated Solution Reduces Board Area and Total Cost APPLICATIONS D Low-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V D Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors D Broadband, Networking, and Optical Communications Infrastructure D Portable Computing/Notebook PCs DESCRIPTION As members of the SWIFT family of dc/dc regulators, the TPS54110 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 provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power-good output useful for processor/logic rese...