Datasheet

0 10 20 30 40 50 60 70 80 90 100
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
0.0
1.0
2.0
3.0
3.5
Output
Voltage
Enable
(TPS2554)
Time (ms)
Voltage (V)
Current (A)
Input
Current
C
IN
= 100 nF; C
OUT
= 150 µF; R
ILIM
= 20 kΩ
0
0.2
1.8
2
V
EN
- EN Falling Threshold - V
1
0.6
1.4
0.4
1.2
0.8
1.6
-40 -20 0 60 80 100 120
T
J
- Junction Temperature - °C
4020 140
0 10 20 30 40 50 60 70 80 90 100
0.0
2.0
4.0
6.0
8.0
10.0
0.0
2.0
4.0
6.0
8.0
10.0
Input
Voltage
Time (ms)
Voltage (V)
Current (A)
Input
Current
R
ILIM
= 20 kΩ
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
0.0
2.0
4.0
6.0
8.0
10.0
0.0
2.0
4.0
6.0
8.0
10.0
Input Voltage
Time (ms)
Voltage (V)
Current (A)
Output
Current
R
ILIM
= 20 kΩ
TPS2554
TPS2555
www.ti.com SLVSAM0 –JUNE 2011
TYPICAL CHARACTERISTICS (continued)
EN Threshold Falling
vs Response to a Short Circuit
Temperature (following assertion of enable)
Figure 12. Figure 13.
Response to a Short Circuit Response to a Short Circuit
(apply input voltage with output shorted) (apply input voltage with output shorted)
Figure 14. Figure 15.
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