TPS5420MDREP ,Enhanced Product 5.5V to 36V Input, 2A, 500kHz Step Down Converter 8-SOIC -55 to 125/swift• High Efficiency up to 95% Enabled by 110-mΩIntegrated MOSFET SwitchAPPLICATIONS• Wide Outpu ..
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TPS5420MDREP
Enhanced Product 5.5V to 36V Input, 2A, 500kHz Step Down Converter
www.ti.com
FEATURES
APPLICATIONS
DESCRIPTION/ORDERING INFORMATION
TPS5420-EP
SLVS717–DECEMBER 2006
2-A WIDE-INPUT-RANGE STEP-DOWN SWIFT™ CONVERTER Fixed 500-kHz Switching Frequency for Small
Filter Size•
Controlled Baseline Improved Line Regulation and Transient– One Assembly/Test Site, One Fabrication
Response by Input Voltage Feed ForwardSite System Protectedby Overcurrent Limiting and•
Enhanced Diminishing Manufacturing Sources Thermal Shutdown(DMS) Support -55°Cto 125°C Operating Junction•
Enhanced Product-Change Notification
Temperature Range•
Qualification Pedigree(1)
Availablein Small 8-Pin SOIC Package•
Wide Input Voltage Range: 5.5Vto 35V •
For SWIFT™ Documentation, Application•
Upto 2-A Continuous (3-A Peak) Output Reports, and Design Software, See theTICurrent Websiteat www.ti.com/swift•
High Efficiency upto 95% Enabled by 110-mΩ
Integrated MOSFET Switch Wide Output Voltage Range: Adjustable Down •
Consumer: Set-Top Boxes, DVDs, LCDto 1.22V with 1.5% Initial Accuracy Displays Internal Compensation Minimizes External •
Industrial and Car Audio Power Supplies
Parts Count •
Battery Chargers, High-Power LED Supplies(1) Component qualificationin accordance with JEDEC and •
12-V/24-V Distributed Power Systemsindustry standardsto ensure reliable operation overan
extended temperature range. This includes,butisnot limited
to, Highly Accelerated Stress Test (HAST)or biased 85/85,
temperature cycle, autoclaveor unbiased HAST,
electromigration, bond intermetallic life, and mold compound
life. Such qualification testing shouldnotbe viewedas
justifying useofthis component beyond specified
performance and environmental limits.a memberof the SWIFT™ familyof dc/dc regulators, the TPS5420isa high-output-current PWM converter
that integratesa low-resistance high-side N-channel MOSFET. Includedon the substrate with the listed featuresa high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient
conditions,an undervoltage-lockout circuitto prevent start-up until the input voltage reaches 5.5V, an internally
set slow-start circuitto limit inrush currents, anda voltage feed-forward circuitto improve the transient response.
Using the ENA pin, shutdown supply currentis reducedto18 μA, typically. Other features includean active high
enable, overcurrent protection, and thermal shutdown. To reduce design complexity and external component
count, the TPS5420 feedback loopis internally compensated.
The TPS5420 deviceis availablein an easyto use 8-pin SOIC package.TI provides evaluation modules and the
SWIFT Designer Software toolto aidin quickly achieving high-performance power-supply designsto meet
aggressive equipment development cycles.
