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TPS84250 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS84250 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 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 0 0.5 1 1.5 2 2.5 Output Current (A) 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) Natural Convection All Output Voltages 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 = 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 0 0.5 1 1.5 2 2.5 Output Current (A) 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 = 12 V) (1) (2) Figure 1. Efficiency vs. Output Current Figure 2. Voltage Ripple vs. Output Current Figure 3. Power Dissipation vs. Output Current Figure 4. Safe Operating Area Figure 5. VOUT= 5 V, IOUT= 2 A, COUT1= 44 µF ceramic, Figure 6. VOUT= 3.3 V, IOUT= 2 A, COUT1= 44 µF ceramic, COUT2= 56 µF electrolytic, fSW= 500 kHz COUT2= 56 µF electrolytic, fSW= 400 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 1, Figure 2, and Figure 3. (2) 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 4. Copyright © 2012, Texas Instruments Incorporated 7 |
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