Datasheet

40
50
60
70
80
90
100
Efficiency - %
0 0.5 1 1.5 2 2.5 3
I - Output Current - A
O
V = 6 V
IN
V = 18 V
IN
V = 12 V
IN
Vout(50mV/div)
100 s/divm
Iout(2A/div)
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
0 2 4 6 8 10 12 14 16 18 20
V - Input Voltage - V
I
I = 10 mA
O
I = 1 A
O
Iout(2A/div)
100 s/divm
Vout(50mV/div)
TPS54394
SLVSBE6B –JUNE 2012–REVISED AUGUST 2013 www.ti.com
TYPICAL CHARACTERISTICS (continued)
One output is enabled unless otherwise noted. V
I
= VIN1 or VIN2. VIN = 12 V, T
A
= 25°C (unless otherwise noted).
Figure 7. VO2=1.5V Output Voltage vs Input Voltage Figure 8. VO1=3.3V, 0A to 3A Load Transient Response
Figure 9. VO2=1.5V, 0A to 3A Load Transient Response Figure 10. VO1=3.3V, PG
Figure 11. VO2=1.5V, PG Figure 12. VO1=3.3V, Efficiency vs Output Current
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