Datasheet

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
I - Output Current - A
O
1.45
1.46
1.47
1.48
1.49
1.5
1.51
1.52
1.53
1.54
1.55
V - Output Voltage - V
O
V = 12 V
I
V = 5 V
I
V = 18 V
I
0 2 4 6 8 10 12 14 16 18 20
V - Input Voltage - V
I
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
3.36
3.38
3.4
V - Output Voltage - V
O
I = 1 A
o1
I = 10 mA
o1
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
I - Output Current - A
O
3.2
3.22
3.24
3.26
3.28
3.3
3.32
3.34
3.36
3.38
3.4
V - Output Voltage - V
O
V = 12 V
I
V = 5 V
I
V = 18 V
I
0
10
20
30
40
50
60
70
80
90
100
EN Input Current - Am
0 5 10 15 20
EN Input Voltage - V
VIN1 = VIN2 = 12V
EN1 = EN2 = ON
0
20
40
60
80
100
120
140
160
180
200
Ivccsdn - Shutdown Current - Am
-50 0 50 100 150
T - Junction Temperature - °C
J
TPS54294
www.ti.com SLVSB00D –OCTOBER 2011–REVISED SEPTEMBER 2013
TYPICAL CHARACTERISTICS
One output is enabled unless otherwise noted. VI = VIN1 or VIN2.
VIN = 12 V, T
A
= 25°C (unless otherwise noted).
Figure 1. Input Current vs Junction Temperature Figure 2. Input Shutdown Current vs Junction Temperature
Figure 3. EN Current vs EN Voltage (VEN=12V) Figure 4. VO1=3.3V Output Voltage vs Output Current
Figure 5. VO2=1.5V Output Voltage vs Output Current Figure 6. VO1=3.3V Output Voltage vs Input Voltage
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