TPS5450QDDARQ1 ,Automotive Catalog 5A, Wide Input Step Down SWIFT Converter 8-SO PowerPAD -40 to 125maximum ratings may cause permanent damage to the device. These are stress ratingsonly and function ..
TPS54519RTER ,2.95V to 6V Input, 5A Synchronous Step-Down Converter 16-WQFN -40 to 150ELECTRICAL CHARACTERISTICST = –40°C to 140°C, VIN = 2.95 to 6 V (unless otherwise noted)JDESCRIPTIO ..
TPS54521RHLR ,17V Input, 5A Synchronous Step-Down Converter 14-VQFN -40 to 125FEATURES2• Integrated 57mΩ / 50mΩ MOSFETs • Power Good Output for Undervoltage andOvervoltage Monit ..
TPS54525PWPR ,4.5V to 18V Input, 5.5-A Synchronous Step-Down Converter 14-HTSSOP -40 to 85ELECTRICAL CHARACTERISTICSover operating free-air temperature range, V = 12V (unless otherwise note ..
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TPS54527DDAR ,4.5V to 18V Input, 5-A Synchronous Step-Down Converter 8-SO PowerPAD -40 to 85 SLVSAY5D–JULY 2011–REVISED AUGUST 20165 Pin Configuration and FunctionsDDA Package8-Pin SO PowerPA ..
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TPS5450QDDARQ1
Automotive Catalog 5A, Wide Input Step Down SWIFT Converter 8-SO PowerPAD -40 to 125
VIN VOUT
Simplified Schematic Efficiency vs Output CurrentEfficiency - % 1 2 4 5 = 12 V, = 5 V, = 500 kHz, = 25°C
TPS5450-Q1
www.ti.com SLVS834A–JULY 2008–REVISED OCTOBER 2011
5-A, WIDE INPUT RANGE, STEP-DOWN SWIFT™ CONVERTER
Checkfor Samples: TPS5450-Q1
1FEATURES APPLICATIONS Qualified for Automotive Applications •
High-Density Point-of-Load Regulators Wide Input Voltage Range: 5.5Vto36V •
LCD Displays, Plasma Displays Upto 5-A Continuous (6-A Peak) Output •
Battery Chargers
Current •
12-V/24-V Distributed Power Systems High Efficiency Greater than 90% Enabledby
110-mΩ Integrated MOSFET Switch DESCRIPTIONa member of the SWIFT™ family of DC/DC•
Wide Output Voltage Range: Adjustable Downregulators, the TPS5450 isa high-output-current
to 1.22V with 1.5% Initial Accuracy PWM converter that integrates a low-resistance•
Internal Compensation Minimizes External high-side N-channel MOSFET. Included on the
Parts Count substrate with the listed features are a
Fixed 500-kHz Switching Frequency for Small high-performance voltage error amplifier that provides
Filter Size tight voltage regulation accuracy under transient
conditions, an undervoltage-lockout circuitto prevent•
18-μA Shutdown Supply Current start-up until the input voltage reaches 5.5 V, an•
Improved Line Regulation and Transient internally set slow-start circuitto limit inrush currents,
Response by Input Voltage Feed Forward anda voltage feed-forward circuit to improve the
System Protected by Overcurrent Limiting, transient response. Using the ENA pin, shutdown
supply currentis reducedto 18 μA typically. Other
Overvoltage Protection, and Thermalfeatures include an active-high enable, overcurrent
Shutdown limiting, overvoltage protection, and thermal• –40°C
to 125°C Operating Junction shutdown. To reduce design complexity and external
Temperature Range component count, the TPS5450 feedback loopis
Availablein Small Thermally Enhanced 8-Pin internally compensated.
SOIC PowerPAD™ Package The TPS5450 deviceis available ina thermally•
For SWIFT™ Documentation, Application enhanced, 8-pin SOIC PowerPAD™ package. TI
Reports and Design Software, See theTI provides evaluation modules and software toolsto aid
Websiteat www.ti.com/swift in achieving high-performance power supply designs meet aggressive equipment development cycles.
