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TPS56121DQPR Datasheet(PDF) 9 Page - Texas Instruments |
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TPS56121DQPR Datasheet(HTML) 9 Page - Texas Instruments |
9 / 22 page 26 28 30 32 34 36 38 40 −40 −25 −10 5 20 35 50 65 80 95 110 125 Junction Temperature (°C) VVDD = 4.5 V VVDD = 12 V 450 500 550 600 650 700 750 −40 −25 −10 5 20 35 50 65 80 95 110 125 Junction Temperature (°C) VOV VUV 50 60 70 80 90 100 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Load Current (A) VOUT = 0.8 V VOUT = 1.0 V VOUT = 1.2 V VOUT = 1.8 V VOUT = 2.5 V VOUT = 3.3 V fSW = 500 kHz VVIN = 12 V TA = 25°C 70 75 80 85 90 95 100 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Load Current (A) VOUT = 0.8 V VOUT = 1.0 V VOUT = 1.2 V VOUT = 1.8 V VOUT = 2.5 V fSW = 500 kHz VVIN = 5 V TA = 25°C 0 2 4 6 8 10 12 14 16 0 10 20 30 40 50 60 70 80 90 100 110 Ambient Temperature (°C) VOUT = 0.8 V VOUT = 1.0 V VOUT = 1.2 V VOUT = 1.8 V VOUT = 2.5 V VOUT = 3.3 V VVIN = 12 V 0 2 4 6 8 10 12 14 16 0 20 40 60 80 100 110 Ambient Temperature (°C) VOUT = 0.8 V VOUT = 1.0 V VOUT = 1.2 V VOUT = 1.8 V VOUT = 2.5 V VVIN = 5 V TPS56121 www.ti.com SLUSAH4 – MARCH 2011 TYPICAL CHARACTERISTICS The efficiency curve shown in Figure 15 is measured with a 0.5- µH output inductor and a maximum DCR of 0.75 mΩ. The efficiency curve shown in Figure 16 is measured with a 0.3- µH output inductor and a maximum DCR of 0.54 mΩ. The power derating curves shown in Figure 17 and Figure 18 are measured on a 4 " × 3.25", 0.062" thick FR4 board with 6 layers and 1 oz. copper. Figure 13. High-Side Overcurrent Threshold vs. Junction Figure 14. Power Good Threshold Voltage vs. Junction Temperature Temperature Figure 15. Efficiency vs. Load Current (VVIN = 12 V) Figure 16. Efficiency vs. Load Current (VVIN = 5 V) Figure 17. Output Current vs. Ambient Temperature Figure 18. Output Current vs. Ambient Temperature (VVIN = 12 V) (VVIN = 5 V) Copyright © 2011, Texas Instruments Incorporated 9 Product Folder Link(s) :TPS56121 |
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