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TPS54140 Datasheet(PDF) 7 Page - Texas Instruments

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Part # TPS54140
Description  1.5-A, 42V STEP DOWN SWIFT??DC/DC CONVERTER WITH ECO-MODE?
Download  46 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

TPS54140 Datasheet(HTML) 7 Page - Texas Instruments

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TYPICAL CHARACTERISTICS
0.784
0.792
0.800
0.808
0.816
-50
-25
0
25
50
75
100
125
150
T -JunctionTemperature-°C
J
V =12V
I
0
125
250
375
500
-50
-25
0
25
50
75
100
125
150
T -JunctionTemperature-°C
J
BOOT-PH=3V
BOOT-PH=6V
V =12V
I
550
570
580
590
600
610
-50
-25
0
25
50
75
100
125
150
560
T -JunctionTemperature-°C
J
V =12V,
RT =200k
I
W
2
2.5
3
3.5
-50
-25
0
25
50
75
100
125
150
T -JunctionTemperature-°C
J
V =12V
I
0
500
1000
1500
2000
2500
0
25
50
75
100
125
150
175
200
RT/CLK-Resistance-kW
V =12V,
T =25°C
I
J
0
200
400
600
800
1000
100
200
300
400
500
600
700
800
900
1000
RT/CLK-Resistance-kW
V =12V,
T =25°C
I
J
TPS54140
www.ti.com .............................................................................................................................................................................................. SLVS889 – OCTOBER 2008
ON RESISTANCE vs JUNCTION TEMPERATURE
VOLTAGE REFERENCE vs JUNCTION TEMPERATURE
Figure 1.
Figure 2.
SWITCH CURRENT LIMIT vs JUNCTION TEMPERATURE
SWITCHING FREQUENCY vs JUNCTION TEMPERATURE
Figure 3.
Figure 4.
SWITCHING FREQUENCY vs RT/CLK RESISTANCE HIGH
SWITCHING FREQUENCY vs RT/CLK RESISTANCE LOW
FREQUENCY RANGE
FREQUENCY RANGE
Figure 5.
Figure 6.
Copyright © 2008, Texas Instruments Incorporated
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