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TPS84250RKGR Datasheet(PDF) 10 Page - Texas Instruments |
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TPS84250RKGR Datasheet(HTML) 10 Page - Texas Instruments |
10 / 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 1 2 3 4 5 6 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 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 G000 0 10 20 30 40 50 60 70 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 G000 TPS84250 SLVSAR6 – AUGUST 2012 www.ti.com TYPICAL CHARACTERISTICS (VIN = 48 V) (1) (2) (3) Figure 19. Efficiency vs. Output Current Figure 20. Voltage Ripple vs. Output Current Figure 21. Power Dissipation vs. Output Current Figure 22. Safe Operating Area Figure 23. VOUT= 5 V, IOUT= 2 A, COUT1= 44 µF ceramic, Figure 24. 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 19, Figure 20, and Figure 21. (2) At light load the output voltage ripple may increase due to pulse skipping. See Light-Load Behavior for more information. Applies to Figure 20. (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 22. 10 Copyright © 2012, Texas Instruments Incorporated |
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