TPS54372-Q1 Datasheet | Texas Instruments

FEATURES D Qualified for Automotive Applications D Tracks Externally Applied Reference Voltage D 60-mΩ MOSFET Switches for High Efficiency at 3-A Continuous Output Source or Sink Current D 6% to 90% VI Output Tracking Range D Wide PWM Frequency: Fixed 350 k Hz or Adjustable 280 k Hz to 700 k Hz D Load Protected by Peak Current Limit and Thermal Shutdown D Integrated Solution Reduces Board Area and Total Cost DESCRIPTION As a member of the SWIFT family of dc/dc regulators, the TPS54372 low-input voltage high-output current synchronous-buck PWM converter integrates all required active ponents. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter L and C ponents; an under-voltage-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 status output to indicate valid operating conditions. APPLICATIONS D DDR Memory Termination Voltage D Active Termination of GTL and SSTL High-Speed Logic Families D DAC Controlled High Current Output Stage D Precision Point of Load Power Supply The TPS54372 is available in a thermally enhanced 20-pin TSSOP (PWP) Power PAD package, which eliminates bulky heatsinks. Texas Instruments provides evaluation modules and the SWIFT designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles. - Output Voltage - 50 m V/div IO - Output Current - 1 A/div SIMPLIFIED SCHEMATIC VDDQ Input SIMPLIFIED SCHEMATIC TPS54372 BOOT PGND REFIN VBIAS AGND VSENSE VTTQ pensation Network TRANSIENT RESPONSE VI = 5 V, VO = 1.25 V 0 A to 2.25 A t - Time - 25 ms/div Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments...