TPS V to 14.5V Input, 6-A, Synchronous Buck Integrated Power Solution Power at your Fingertips

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

TPS V to 14.5V Input, 6-A Synchronous Buck Integrated Power Solution Integrated Inductor and Passives Easy to Mount 15 x 9 x 2.8mm QFN Package Delivers 800W/in 3 Solution 95% Peak Efficiency and 13°C/W Ө JA Thermal Resistance Adjustable Frequency, Soft Start, & UVLO with Track, Clock and PG pins 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 Broadband & Communication Infrastructure Automated Test and Medical Equipment Compact PCI / PCI Express / PXI Express DSP & FPGA Point of Load Applications TPS84620EVM-692 SwitcherPro Software 1.2V to 5.5Vout

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

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

Small & Easy-to-Mount QFN Package Small 9mm x 15mm x 2.8mm QFN package: –Achieves 800W/in 3 density including external components –Occupies as little as 200mm 2 including external components Package is easy to mount on the circuit board –See App Note SLUA271See App Note SLUA271 Pins are accessible from all four package sides Top / Side View 21mm x 9 mm total solution size

TPS84620 Thermal Performance 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: LFM = 0 VIN = 12 VOUT = 3.3 IOUT = 6 Ta=28.8°C

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

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, 2009TI Internal Information9

TPS84620 Preferences Summary 1.Ease of Use –No Magnetics Selection or Layout –No Loop Compensation –Fewer Passive Components 2.Performance –Good package thermal dissipation –Similar feature set and efficiency of a discrete DC/DC converter 3.Size –Novice not able to achieve small solution size –2.8mm height; use on back side of PCB Integrated Discrete Shown to scale

TPS84xxx Integrated Power Solution Plan Step-Down Released 14.5Vin max 6A continuous 9x15x2.8mm TPS Vin max 2A continuous 9x11x1.8mm QFN TPS Vin max 4A continuous 9x11x2.8mm QFN TPS84410 TPS Vin max 1A continuous 9x11x1.8mm QFN TPS Vin max 2A continuous 9x11x2.8mm QFN 2Q 2011 Released In Development

Samples and Evaluation Module –In stock and orderable –TPS84620EVM-692 is $49 –TPS84620 is 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 Logistics and Support Factory Support –Marketing: Rich Nowakowski –Applications: Eric Wright