TPS54316-Q1 Datasheet | Texas Instruments

FEATURES D Qualified for Automotive Applications D 60-mΩ MOSFET Switches for High Efficiency at 3-A Continuous Output Source or Sink Current D 0.9-V, 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V Fixed Output Voltage Devices With 1% Initial Accuracy D Internally pensated for Low Parts Count D Fast Transient Response D Wide PWM Frequency: Fixed 350 k Hz, 550 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 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 munications Infrastructure D Automotive Telematics DESCRIPTION As members of the SWIFT family of dc/dc regulators, the TPS54311, TPS54312, TPS54313, TPS54314, TPS54315, and TPS54316 low-input-voltage high-output current synchronous-buck PWM converters integrate all required active ponents. 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 reset, fault signaling, and supply sequencing. The TPS54311, TPS54312, TPS54313, TPS54314, TPS54315, and TPS54316 devices are 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. These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent...