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TPS84320 Datasheet(PDF) 1 Page - Texas Instruments |
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TPS84320 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 31 page VOUT PVIN VIN TPS84320 SENSE+ VADJ AGND PGND COUT RSET VOUT CIN VIN UDG-10082 PWRGD STSEL RT/CLK INH/UVLO SS/TR 40 45 50 55 60 65 70 75 80 85 90 95 100 0 0.5 1 1.5 2 2.5 3 Output Current (A) VIN = PVIN = 5 V,VOUT = 3.3V, fSW = 630 kHz VIN = PVIN = 12 V,VOUT = 3.3V, fSW = 630 kHz G000 TPS84320 www.ti.com SLUSAH7 – SEPTEMBER 2011 4.5-V to 14.5-V Input, 3-A Synchronous Buck, Integrated Power Solution Check for Samples: TPS84320 1 FEATURES DESCRIPTION 2 • Complete Integrated Power Solution Allows The TPS84320RUQ is an easy-to-use integrated Small Footprint, Low-Profile Design power solution that combines a 3-A DC/DC converter • Efficiencies Up To 95% with power MOSFETs, an inductor, and passives into • Wide-Output Voltage Adjust a low profile, BQFN package. This total power 0.8 V to 5.5 V, with 1% Reference Accuracy solution allows as few as 3 external components and eliminates the loop compensation and magnetics • Optional Split Power Rail Allows design process. Input Voltage Down to 1.6 V The 9 ×15×2.8 mm BQFN package is easy to solder • Adjustable Switching Frequency onto a printed circuit board and allows a compact (330 kHz to 780 kHz) point-of-load design with up to 95% efficiency and • Synchronizes to an External Clock excellent power dissipation with a thermal impedance • Adjustable Slow-Start of 13 °C/W junction to ambient. The device delivers the full 3-A rated output current at 85 °C ambient • Output Voltage Sequencing / Tracking temperature without airflow. • Power Good Output The TPS84320 offers the flexibility and the • Programmable Undervoltage Lockout (UVLO) feature-set of a discrete point-of-load design and is • Overcurrent Protection - Hiccup-Mode ideal for powering performance DSPs and FPGAs. • Over Temperature Protection Advanced packaging technology afford a robust and reliable power solution compatible with standard QFN • Pre-bias Output Start-up mounting and testing techniques. • Operating Temperature Range: –40°C to 85°C • Enhanced Thermal Performance: 13 °C/W SIMPLIFIED APPLICATION • Meets EN55022 Class B Emissions • For Design Help Including SwitcherPro ™ visit http://www.ti.com/TPS84320 APPLICATIONS • Broadband & Communications Infrastructure • Automated Test and Medical Equipment • Compact PCI / PCI Express / PXI Express • DSP and FPGA Point of Load Applications • High Density 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 SwitcherPro is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2011, 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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