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TPS54372-Q1 Datasheet(PDF) 9 Page - Texas Instruments |
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TPS54372-Q1 Datasheet(HTML) 9 Page - Texas Instruments |
9 / 17 page TPS54372-Q1 SGLS267E − OCTOBER 2004 − REVISED JUNE 2008 www.ti.com 9 PERFORMANCE GRAPHS Figure 10 50 55 60 65 70 75 80 85 90 95 100 01 23 4 EFFICIENCY vs OUTPUT CURRENT IO − Output Current − A fs = 700 kHz, VI = 5 V, VO = 1.25 V Figure 11 1.245 1.247 1.249 1.251 1.253 1.255 01 23 4 LOAD REGULATION vs OUTPUT CURRENT IO − Output Current − A fs = 700 kHz, TA = 25°C, VI = 5 V, VO = 1.25 V Figure 12 1.247 1.248 1.249 1.25 1.251 1.252 1.253 3 456 IO = 3 A VI − Input Voltage − V LINE REGULATION vs INPUT VOLTAGE IO = 0 A fs = 700 kHz, TA = 25°C, VO = 1.25 V IO = 1.5 A Figure 13 t − Time − 1 µs/div OUTPUT RIPPLE VOLTAGE fs = 700 kHz, IO = 3 A, VI = 5 V, VO = 1.25 V Figure 14 t − Time − 25 ms/div TRANSIENT RESPONSE VI = 5 V, VO = 1.25 V 0 A to 2.25 A Figure 15 VI = 5 V, VO = 1.25 V SLOW-START TIMING t −Time − 2.5 ms/div 25 35 45 55 65 75 85 95 105 115 125 01 23 4 AMBIENT TEMPERATURE vs LOAD CURRENT IL − Load Current − A Safe Operating Area(1) (1) Safe operating area is applicable to the test board conditions listed in the dissipation rating table section of this data sheet. Figure 16 VI = 3.3 V VI = 5 V TA = 25°C, VO = 1.25 V t − Time − 100 µs/div SOURCE-SINK TRANSIENT RESPONSE VI = 5 V, VO = 1.25 V −1.5 A to 1.5 A Figure 17 |
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