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TPS84620 4.5V to 14.5V Input, 6-A, Synchronous Buck Integrated Power Solution

Power at your Fingertips. TPS84620 4.5V to 14.5V Input, 6-A, Synchronous Buck Integrated Power Solution. Growing trend to simplify POL Solutions. Designers must quickly solve technical problems during the development phase A simple power solution reduces burdens and brings peace-of-mind

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TPS84620 4.5V to 14.5V Input, 6-A, Synchronous Buck Integrated Power Solution

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  1. Power at your Fingertips TPS846204.5V to 14.5V Input, 6-A, Synchronous Buck Integrated Power Solution

  2. Growing trend to simplify POL Solutions • Designers must quickly solve technical problems during the development phase • A simple power solution reduces burdens and brings peace-of-mind • Allows focus on core competency • Many architectural standards have fixed chassis sizes and power supply budgets • Increasing PCB density allows designers to further differentiate their product • High power efficiency allows increased card density and higher product performance Greatest need is a simple POL solution to increase density without sacrificing performance

  3. TPS846204.5V to 14.5V Input, 6-A Synchronous Buck Integrated Power Solution Features Benefits • As Few as 3 External Components Required • 40% Smaller Package than Competitive 12V, 6A Integrated Inductor Solutions • Low Thermal Resistance Delivers Full 6-A Rated Current without Airflow • Provides the Design Flexibility of a Discrete Solution • Integrated Inductor and Passives • Easy to Mount 15 x 9 x 2.8mm QFN Package Delivers 800W/in3 Solution • 95% Peak Efficiency and 13°C/W ӨJA Thermal Resistance • Adjustable Frequency, Soft Start, & UVLO with Track, Clock and PG pins Applications • Broadband & Communication Infrastructure • Automated Test and Medical Equipment • Compact PCI / PCI Express / PXI Express • DSP & FPGA Point of Load Applications 1.2V to 5.5Vout TPS84620EVM-692 SwitcherPro Software

  4. Easy to Use Point-of-Load Only 3 External Components • Requires only input & output capacitors, and a voltage programming resistor • Frequency preset to 480kHz Additional Features • Optional components: • Frequency select resistor • UVLO programming resistors • Soft start capacitor • Sequencing/Tracking resistors

  5. TPS846204.5V to 14.5V Input, 6-A Synchronous Buck Integrated Power Solution Feature Set of a Discrete Solution • Adjustable Fsw from 480kHz to 780kHz at RT pin • Tracking (TR) pin configures various sequencing schemes • Clock (CLK) pin synchronizes frequency to a master clock to avoid beat noise • Adjustable under voltage lock out (UVLO) • Programmable slow-start (SS) • Remote sensing VSENSE+ pin improves regulation when connected to Vout near the load • Powergood and Inhibit pins available

  6. Small & Easy-to-Mount QFN Package • Small 9mm x 15mm x 2.8mm QFN package: • Achieves 800W/in3 density including external components • Occupies as little as 200mm2 including external components • Package is easy to mount on the circuit board • See App Note SLUA271 • Pins are accessible from all four package sides 21mm x 9 mm total solution size Top / Side View

  7. TPS84620 Thermal Performance LFM = 0 VIN = 12 VOUT = 3.3 IOUT = 6 Ta=28.8°C Excellent Thermal Performance • Provides 6A continuous output current up to 85°C ambient with no airflow; 12V and 5V inputs • 13°C/W junction to ambient thermal resistance keeps the device and circuit board cooler for long term reliability • 58.9°C maximum package temperature under operating conditions shown:

  8. TPS84620 Efficiency: 12V & 5V Input High Efficiency over different output voltages

  9. Electromagnetic Interference The TPS84620 is compliant with EN55022 Class B radiated emissions. Both graphs include the plots of the antenna in the horizontal and vertical positions. August 24, 2009 TI Internal Information 9

  10. TPS84620 Preferences Summary • Ease of Use • No Magnetics Selection or Layout • No Loop Compensation • Fewer Passive Components • Performance • Good package thermal dissipation • Similar feature set and efficiency of a discrete DC/DC converter • Size • Novice not able to achieve small solution size • 2.8mm height; use on back side of PCB Integrated Discrete Shown to scale

  11. TPS84xxx Integrated Power Solution PlanStep-Down Released In Development TPS84150 TPS84250 • 50Vin max • 1A continuous • 9x11x1.8mm QFN • 50Vin max • 2A continuous • 9x11x2.8mm QFN TPS84620 • 14.5Vin max • 6A continuous • 9x15x2.8mm TPS84210 TPS84410 • 5.5Vin max • 2A continuous • 9x11x1.8mm QFN • 5.5Vin max • 4A continuous • 9x11x2.8mm QFN Released 2Q 2011

  12. Logistics and Support • Samples and Evaluation Module • In stock and orderable • TPS84620EVM-692 is $49 • TPS84620 is $7.00 @ 1K resale • Low parts-count reference design BOM, Schematic, and layout files in product folder • SwitcherPro software support • Frequently Asked Questions Document in ESP • Qualification Memo Document in ESP • Factory Support • Marketing: Rich Nowakowski • 214-480-1667 (r-nowakowski1@ti.com) • Applications: Eric Wright • 214-480-3403 (eric.wright@ti.com

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