TPS54260_1 Datasheet, PDF (9/47 Pages) Texas Instruments – 3.5V to 60V INPUT, 2.5A, STEP DOWN CONVERTER WITH ECO-MODE™

TPS54260
www.ti.com
SLVSA86 – MARCH 2010
TYPICAL CHARACTERISTICS (continued)
SS/TR DISCHARGE CURRENT vs JUNCTION TEMPERATURE
575
V_I = 12 V
500
SWITCHING FREQUENCY vs VSENSE
100
V_I = 12 V,
T_J = 25°C
80
425
60
350
40
275
20
200
-50
0
50
100
150
T_J - Junction Temperature - °C
Figure 13.
SHUTDOWN SUPPLY CURRENT vs JUNCTION TEMPERATURE
2
V_I = 12 V
1.5
0
0
0.2
0.4
0.6
0.8
V_SENSE - V
Figure 14.
SHUTDOWN SUPPLY CURRENT vs INPUT VOLTAGE (V_in)
2
T_J = 25°C
1.5
1
1
0.5
0
-50 -25
0
25
50
75 100 125 150
T_J - Junction Temperature - °C
Figure 15.
VIN SUPPLY CURRENT vs JUNCTION TEMPERATURE
210
V_I = 12 V,
190
V_I(VSENSE) = 0.83 V
170
150
130
110
90
70
-50
0
50
100
150
T_J - Junction Temperature - °C
Figure 17.
0.5
0
0
10
20
30
40
50
60
V_I - Input Voltage - V
Figure 16.
VIN SUPPLY CURRENT vs INPUT VOLTAGE
170
T_J = 25^oC,
V_I(VSENSE) = 0.83 V
150
130
110
0
20
40
60
V_I - Input Voltage - V
Figure 18.
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