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TPS54428DDA Datasheet(PDF) 10 Page - Texas Instruments |
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TPS54428DDA Datasheet(HTML) 10 Page - Texas Instruments |
10 / 22 page 0 10 20 30 40 50 60 70 80 90 100 0.001 0.01 0.1 I - Output Current - A O V = 3.3 V O V = 2.5 V O V = 1.8 V O 400 450 500 550 600 650 700 750 800 850 900 0 5 10 15 20 V - Input Voltage - V I V = 5 V O V = 2.5 V O V = 1.8 V O V = 1.5 V O V = 1.2 V O V = 1.05 V O V = 3.3 V O 0 100 200 300 400 500 600 700 800 0 1 2 3 4 I - Output Current - A O V = 1.8 V O V = 1.05 V O V = 3.3 V O 0.75 0.755 0.76 0.765 0.77 0.775 0.78 -50 0 50 100 150 T - Junction Temperature - °C J Vo (10 mV/div) V = 1.05 V O SW (5 V/div) Vo = 1.5 V VIN (50 mV/div) SW (5 V/div) 500 ns/div TPS54428 SLVSB42A – NOVEMBER 2011 – REVISED JANUARY 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) VIN = 12 V, TA = 25 °C (unless otherwise noted) Figure 9. LIGHT LOAD EFFICIENCY vs OUTPUT CURRENT Figure 10. SWITCHING FREQUENCY vs INPUT VOLTAGE Figure 11. SWITCHING FREQUENCY vs OUTPUT Figure 12. VFB VOLTAGE vs JUNCTION TEMPERATURE CURRENT Figure 13. VOLTAGE RIPPLE vs RIPPLE AT OUTPUT (IO = Figure 14. VOLTAGE RIPPLE vs RIPPLE AT INPUT (IO = 4A 4A 10 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Link(s) :TPS54428 |
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