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TPS54380 Datasheet(PDF) 7 Page - Texas Instruments |
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TPS54380 Datasheet(HTML) 7 Page - Texas Instruments |
7 / 17 page www.ti.com TYPICAL CHARACTERISTICS 0 20 40 60 80 100 120 −40 0 25 85 125 VI = 3.3 V TJ − Junction Temperature − °C 0 20 40 60 80 100 −40 0 25 85 125 VI = 5 V TJ − Junction Temperature − °C 450 −40 0 25 550 750 85 125 650 350 250 TJ − Junction Temperature − °C SYNC ≥ 2.5 V SYNC ≤ 0.8 V 0.889 −40 0 25 0.895 85 125 0.893 0.887 0.885 TJ − Junction Temperature − °C 0.891 1050 −40 0 25 1100 1200 85 125 1150 1000 T − Junction T J emperature − C o RT = 43 kW 450 500 −40 0 25 600 85 125 550 400 T − Junction T J emperature − C o RT = 100 kW f − Frequency − Hz 60 40 0 0 10 100 1 k 10 k 100 k 1 M 80 100 140 10 M 120 20 −20 0 −20 −40 −60 −80 −100 −120 −140 −160 −180 −200 RL= 10 kΩ, CL = 160 pF, TA = 25°C Phase Gain TJ − Junction Temperature − °C 3.35 3.20 2.90 −40 0 25 85 3.50 3.65 125 3.80 3.05 2.75 0 0.2 0.4 0.6 0.8 1 1.2 0 1 1.5 2 2.5 0.5 3 I − Output Current − A O T = 25 C, A o f = 700 kHz, V = 5 V, V = 3.3 V s I O TPS54317 SLVS619A – NOVEMBER 2005 – REVISED FEBRUARY 2006 DRAIN-SOURCE ON-STATE DRAIN-SOURCE ON-STATE INTERNALLY SET OSCILLATOR RESISTANCE RESISTANCE FREQUENCY vs vs vs JUNCTION TEMPERATURE JUNCTION TEMPERATURE JUNCTION TEMPERATURE Figure 1. Figure 2. Figure 3. EXTERNALLY SET OSCILLATOR EXTERNALLY SET OSCILLATOR VOLTAGE REFERENCE FREQUENCY FREQUENCY vs vs vs JUNCTION TEMPERATURE JUNCTION TEMPERATURE JUNCTION TEMPERATURE Figure 4. Figure 5. Figure 6. ERROR AMPLIFIER INTERNAL SLOW-START TIME DEVICE POWER LOSSES OPEN LOOP RESPONSE vs vs JUNCTION TEMPERATURE LOAD CURRENT Figure 7. Figure 8. Figure 9. 7 Submit Documentation Feedback |
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