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TPS54972PWPR Datasheet(PDF) 1 Page - Texas Instruments |
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TPS54972PWPR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 19 page 6,4 mm x 9,7 mm VIN PH BOOT PGND VSENSE V(TTQ) AGND VBIAS Input TPS54972 COMP Compensation Network REFIN TRANSIENT RESPONSE V(DDQ) VI = 3.3 V VO = 1.25 V 2.25 A to 6.75 A t – Time – µs/div TPS54972 www.ti.com SLVS437B – AUGUST 2002 – REVISED AUGUST 2010 9-A OUTPUT, 3-V TO 4-V INPUT TRACKING/TERMINATION SYNCHRONOUS PWM SWITCHER WITH INTEGRATED FETs (SWIFT™) 1 FEATURES DESCRIPTION • Tracks Externally Applied Reference Voltage • 15-m Ω MOSFET Switches for High Efficiency As a member of the SWIFT™ family of dc/dc regulators, the TPS54972 low-input voltage at 9-A Continuous Output Source or Sink high-output current synchronous-buck PWM Current converter integrates all required active components. • 6% to 90% VI Output Tracking Range Included on the substrate with the listed features are • Wide PWM Frequency: Fixed 350 kHz or a true, high performance, voltage error amplifier that Adjustable 280 kHz to 700 kHz enables maximum performance under transient conditions and flexibility in choosing the output filter L • Load Protected by Peak Current Limit and and C components; an under-voltage-lockout circuit Thermal Shutdown to prevent start-up until the input voltage reaches 3.0 • Integrated Solution Reduces Board Area and V; an internally set slow-start circuit to limit in-rush Total Cost currents; and a status output to indicate valid operating conditions. APPLICATIONS The TPS54972 is available in a thermally enhanced • DDR Memory Termination Voltage 28-pin TSSOP (PWP) PowerPAD™ package, which • Active Termination of GTL and SSTL eliminates bulky heatsinks. TI provides evaluation High-Speed Logic Families modules and the SWIFT designer software tool to aid • DAC Controlled High Current Output Stage in quickly achieving high-performance power supply designs to meet aggressive equipment development • Precision Point of Load Power Supply cycles. SIMPLIFIED SCHEMATIC 1 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. PRODUCTION DATA information is current as of publication date. Copyright © 2002–2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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