TPS54227DDAR ,4.5V to 18V Input, 2A Synchronous Step-Down Converter 8-SO PowerPAD -40 to 85 SLVSAU2C–MAY 2011–REVISED DECEMBER 20155 Pin Configuration and FunctionsDDA PackageDRC Package8-Pi ..
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TPS54227DDAR
4.5V to 18V Input, 2A Synchronous Step-Down SWIFT?Converter
100 s/divm
Vout (50 mV/div)
Iout (1 A/div)
TPS54227DDA
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SLVSAU2C
TPS54227 4.5-Vto 18-V Input, 2-A Synchronous Step-Down Features 3 DescriptionThe TPS54227 device• Highly-Efficient Integrated FETs Optimizedfor Lower Duty Cycle Applications– 155 mΩ (High-Side) and 108 mΩ (Low-Side)• High Efficiency, Less Than 10 μAat Shutdown• High Initial Bandgap Reference Accuracy Adjustable Soft-Start• Prebiased Soft-Start• 700-kHz Switching Frequency (fSW)• Cycle-By-Cycle Overcurrent Limit
Applications• Wide Rangeof Applications for Low-VoltageSystem– Digital TV Power Supply– High-Definition Blu-ray Disc™ Players– Networking Home Terminals Digital Set Top Boxes (STB)
Simplified Schematic
