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TPS54316PWP Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54316PWP Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page TPS54311, TPS54312 TPS54313, TPS54314 TPS54315, TPS54316 SLVS416B − FEBRUARY 2002 − REVISED APRIL 2005 3-V TO 6-V INPUT, 3-A OUTPUT SYNCHRONOUS-BUCK PWM SWITCHER WITH INTEGRATED FETs (SWIFT ™) (6,3 mm x 6,4 mm) Typical Size FEATURES 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 Compensated for Low Parts Count 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 TPS54311, TPS54312, TPS54313, TPS54314, TPS54315 and TPS54316 low-input-voltage high-output- current synchronous-buck PWM converters integrate 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 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) PowerPAD™ package, which eliminates bulky heatsinks. TI 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. 80 82 84 86 88 90 92 94 96 0 0.5 1 1.5 2 2.5 3 Load Current − A TA = 25°C VI = 5 V VO = 3.3 V EFFICIENCY vs LOAD CURRENT VIN PH TPS54316 BOOT PGND VSENSE GND VBIAS Input Output Simplified Schematic PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. PowerPAD and SWIFT are trademarks of Texas Instruments. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. www.ti.com Copyright © 2002 − 2005, Texas Instruments Incorporated |
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