Datasheet Texas Instruments TPS5450QDDARQ1 — 数据表

TPS5450-Q1
SLVS834A – JULY 2008 – REVISED OCTOBER 2011 www.ti.com 5-A, WIDE INPUT RANGE, STEP-DOWN SWIFT™ CONVERTER
Check for Samples: TPS5450-Q1 FEATURES APPLICATIONS 1 2 Qualified for Automotive Applications
Wide Input Voltage Range: 5.5 V to 36 V
Up to 5-A Continuous (6-A Peak) Output
Current
High Efficiency Greater than 90% Enabled by
110-mΩ Integrated MOSFET Switch
Wide Output Voltage Range: Adjustable Down
to 1.22 V with 1.5% Initial Accuracy
Internal Compensation Minimizes External
Parts Count
Fixed 500-kHz Switching Frequency for Small
Filter Size
18-ОјA Shutdown Supply Current
Improved Line Regulation and Transient
Response by Input Voltage Feed Forward
System Protected by Overcurrent Limiting,
Overvoltage Protection, and Thermal
Shutdown
–40°C to 125°C Operating Junction
Temperature Range
Available in Small Thermally Enhanced 8-Pin …