Datasheet

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 = 10 mA
O
I = 1 A
O
V = 18 V
IN
0 0.5 1 1.5 2 2.5 3
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
IN
V = 5 V
IN
0 0.5 1 1.5 2 2.5 3
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 = 6 V
IN
V = 12 V
IN
V = 18 V
IN
0
10
20
30
40
50
60
EN Input Current - Am
0 5 10 15 20
EN Input Voltage - V
EN1
EN2
-50 0 50 100 150
T - Junction Temperature - °C
J
0
200
400
600
800
1000
1200
1400
1600
1800
2000
I - Supply Current - A
CC
m
VIN1 = VIN2 = 12 V,
EN1 = EN2 = ON
IIN
-50 0 50 100 150
T - Junction Temperature - °C
J
0
2
4
6
8
10
12
14
16
18
20
Ivccsdn - Shutdown Current - Am
IVINSDN
TPS54394
www.ti.com SLVSBE6B –JUNE 2012–REVISED AUGUST 2013
TYPICAL CHARACTERISTICS
One output is enabled unless otherwise noted. V
I
= 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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