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TPS62046DGQ Datasheet(PDF) 6 Page - Texas Instruments |
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TPS62046DGQ Datasheet(HTML) 6 Page - Texas Instruments |
6 / 30 page TPS62040 TPS62042, TPS62043 TPS62044, TPS62046 SLVS463B − JUNE 2003 − REVISED OCTOBER 2005 www.ti.com 6 TYPICAL CHARACTERISTICS TABLE OF GRAPHS FIGURE η Efficiency vs Load current 1, 2, 3 η Efficiency vs Input voltage 4 IQ Quiescent current vs Input voltage 5, 6 fs Switching frequency vs Input voltage 7 rDS(on) P-Channel rDS(on) vs Input voltage 8 rDS(on) N-Channel rectifier rDS(on) vs Input voltage 9 Load transient response 10 PWM operation 11 Power save mode 12 Start-up 13 Figure 1 40 45 50 55 60 65 70 75 80 85 90 95 100 0 0.01 0.1 1 10 100 1 k 10 k VO = 3.3 V VI = 3.6 V MODE = Low VI = 5 V MODE = Low VI = 3.6 V MODE = High VI = 5 V MODE = High EFFICIENCY vs LOAD CURRENT IL − Load Current − mA Figure 2 40 45 50 55 60 65 70 75 80 85 90 95 100 0 0.01 0.1 1 10 100 1 k 10 k VO = 1.8 V VI = 2.7 V VI = 3.6 V VI = 5 V MODE = Low VI = 3.6 V MODE = High EFFICIENCY vs LOAD CURRENT IL − Load Current − mA |
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