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TPS5430-Q1 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS5430-Q1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 27 page 1 FEATURES DESCRIPTION APPLICATIONS VIN NC NC ENA GND VSENSE BOOT PH TPS5430 VIN VOUT 95 60 70 80 90 100 0 0.5 1 1.5 2.5 3 3.5 I OutputCurrent A O − − EfficiencyvsOutputCurrent SimplifiedSchematic V I =12V V =5V f =500kHz T =25 C O s A o 2 50 55 65 75 85 TPS5430-Q1 www.ti.com ................................................................................................................................................... SLVS751C – NOVEMBER 2007 – REVISED JULY 2009 3-A WIDE-INPUT-RANGE STEP-DOWN SWIFT™ CONVERTER 2 • Qualified for Automotive Applications • Wide Input Voltage Range: 5.5 V to 36 V As a member of the SWIFT™ family of dc/dc regulators, the TPS5430 is a high-output-current • Up to 3-A Continuous (4-A Peak) Output pulse-width modulation (PWM) converter that Current integrates a low-resistance high-side N-channel • High Efficiency up to 95% Enabled by 110-mΩ MOSFET. Included on the substrate with the listed Integrated MOSFET Switch features are a high-performance voltage error amplifier that provides tight voltage regulation • Wide Output Voltage Range: Adjustable Down accuracy under transient conditions, an undervoltage to 1.22 V With 1.5% Initial Accuracy lockout (UVLO) circuit to prevent start-up until the • Internal Compensation Minimizes External input voltage reaches 5.5 V, an internally set Parts Count slow-start circuit to limit inrush currents, and a voltage • Fixed 500-kHz Switching Frequency for Small feed-forward circuit to improve the transient Filter Size response. Using the enable (ENA) pin, shutdown supply current is reduced to 18 µA typically. Other • Improved Line Regulation and Transient features include an active-high enable, overcurrent Response by Input Voltage Feed Forward limiting, overvoltage protection (OVP) and thermal • System Protected by Overcurrent Limiting, shutdown. To reduce design complexity and external Overvoltage Protection, and Thermal component count, the TPS5430 feedback loop is Shutdown internally compensated. The TPS5430 regulates a wide variety of power sources including 24-V buses. • –40°C to 125°C Operating Junction Temperature Range The TPS5430 device is available in a thermally enhanced, easy-to-use 8-pin SOIC PowerPAD™ • Available in Small Thermally Enhanced 8-Pin package. TI provides evaluation modules and the SOIC PowerPAD™ Package SWIFT Designer software tool to aid in quickly • For SWIFT™ Documentation, Application achieving high-performance power supply designs to Notes, and Design Software, See the TI meet aggressive equipment development cycles. Website at www.ti.com/swift • Industrial and Car Audio Power Supplies • Battery Chargers, High-Power LED Supplies • 12-V/24-V Distributed Power Systems 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. 2 PowerPAD, SWIFT are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2007–2009, 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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