Datasheet

Vout2(0.5V/div)
400 s/divm
SS2(2V/div)
EN2(10V/div)
0
10
20
30
40
50
60
70
80
90
100
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
Output Current (A)
Efficiency (%)
V
IN
= 6 V
V
IN
= 12 V
V
IN
= 18 V
G012
Vout(50mV/div)
100 s/divm
Iout(2A/div)
Vout(1V/div)
SS1(2V/div)
400 s/divm
EN1(10V/div)
Iout(1A/div)
100 s/divm
Vout(50mV/div)
1.45
1.46
1.47
1.48
1.49
1.50
1.51
1.52
1.53
1.54
1.55
0 2 4 6 8 10 12 14 16 18 20
Input Voltage (V)
Output Voltage (V)
I
OUT
= 10 mA
I
OUT
= 1 A
G007
TPS542951
SLVSBI4B –JULY 2012–REVISED OCTOBER 2013 www.ti.com
TYPICAL CHARACTERISTICS (continued)
One output is enabled unless otherwise noted. V
IN
= VIN1 or VIN2. V
INx
= 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 4A Load Transient Response
Figure 9. VO2 = 1.5V, 0A to 2A Load Transient Response Figure 10. VO1 = 3.3V, SoftStart
Figure 11. VO2 = 1.5V, SoftStart Figure 12. VO1 = 3.3V, Efficiency vs Output Current
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