Datasheet

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TYPICAL CHARACTERISTICS
-50 -25 0 25 50 75 100 125
1.6
1.7
1.9
1.5
2.0
2.1
1.8
T JunctionTemperature C°
J
- -
I QuiescentCurrent mA
D
DQ
- -
V 5.25V
BP
=
0
20
40
60
80
100
120
-50 -25 0 25 50 75 100 125
140
T JunctionTemperature C°
J
- -
I ShutdownCurrent Am
SD
- -
V
PVDDx
12V=
V
PVDDx
4.5V=
V 28V
PVDDx
=
3.6
3.7
3.8
3.9
4.1
4.2
4.0
UVLO(Off)
UVLO(On)
-50 -25 0 25 50 75 100 125
T JunctionTemperature C°
J
- -
V
UVL
O
- -UndervoltageLockout V
1.15
1.17
1.21
1.23
1.19
1.25
-50 -25 0 25 50
75
100 125
EN(Off)
EN(On)
T JunctionTemperature C°
J
- -
V EnableThresholdVoltage V
EN
- -
TPS54283 , , TPS54286
SLUS749C – JULY 2007 – REVISED OCTOBER 2007
QUIESCENT CURRENT (NON-SWITCHING) SHUTDOWN CURRENT
vs vs
JUNCTION TEMPERATURE JUNCTION TEMPERATURE
Figure 1. Figure 2.
UNDERVOLTAGE LOCKOUT THRESHOLD ENABLE THRESHOLDS
vs vs
JUNCTION TEMPERATURE JUNCTION TEMPERATURE
Figure 3. Figure 4.
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