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TPS84250RKGT Datasheet(PDF) 9 Page - Texas Instruments |
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TPS84250RKGT Datasheet(HTML) 9 Page - Texas Instruments |
9 / 29 page 1000 10000 100000 300000 −40 −30 −20 −10 0 10 20 30 40 −120 −90 −60 −30 0 30 60 90 120 Frequency (Hz) Gain Phase G000 1000 10000 100000 300000 −40 −30 −20 −10 0 10 20 30 40 −120 −90 −60 −30 0 30 60 90 120 Frequency (Hz) Gain Phase G000 0 0.5 1 1.5 2 2.5 3 3.5 4 0 0.5 1 1.5 2 2.5 Output Current (A) VOUT = 15 V,fSW = 1 MHz VOUT = 12 V,fSW = 800 kHz VOUT = 5.0 V,fSW = 500 kHz VOUT = 3.3 V,fSW = 400 kHz VOUT = 2.5 V,fSW = 400 kHz G000 20 30 40 50 60 70 80 90 0 0.5 1 1.5 2 2.5 Output Current (A) VO = 5 V VO = 12 V VO = 15 V Natural Convection G000 50 55 60 65 70 75 80 85 90 95 100 0 0.5 1 1.5 2 2.5 Output Current (A) VOUT = 15 V,fSW = 1 MHz VOUT = 12 V,fSW = 800 kHz VOUT = 5.0 V,fSW = 500 kHz VOUT = 3.3 V,fSW = 400 kHz VOUT = 2.5 V,fSW = 400 kHz G000 0 10 20 30 40 50 60 0 0.5 1 1.5 2 2.5 Output Current (A) VOUT = 15 V,fSW = 1 MHz VOUT = 12 V,fSW = 800 kHz VOUT = 5.0 V,fSW = 500 kHz VOUT = 3.3 V,fSW = 400 kHz VOUT = 2.5 V,fSW = 400 kHz G000 TPS84250 www.ti.com SLVSAR6 – AUGUST 2012 TYPICAL CHARACTERISTICS (VIN = 36 V) (1) (2) (3) Figure 13. Efficiency vs. Output Current Figure 14. Voltage Ripple vs. Output Current Figure 15. Power Dissipation vs. Output Current Figure 16. Safe Operating Area Figure 17. VOUT= 5 V, IOUT= 2 A, COUT1= 44 µF ceramic, Figure 18. VOUT= 12 V, IOUT= 2 A, COUT1= 44 µF ceramic, COUT2= 56 µF electrolytic, fSW= 500 kHz COUT2= 56 µF electrolytic, fSW= 800 kHz (1) The electrical characteristic data has been developed from actual products tested at 25°C. This data is considered typical for the converter. Applies to Figure 13, Figure 14, and Figure 15. (2) At light load the output voltage ripple may increase due to pulse skipping. See Light-Load Behavior for more information. Applies to Figure 14. (3) The temperature derating curves represent the conditions at which internal components are at or below the manufacturer's maximum operating temperatures. Derating limits apply to devices soldered directly to a 100 mm × 100 mm double-sided PCB with 1 oz. copper. Applies to Figure 16. Copyright © 2012, Texas Instruments Incorporated 9 |
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