Datasheet

-0.1
-0.08
-0.06
-0.04
-0.02
0
0.02
0.04
0.06
0.08
0.1
10.8 13.8 16.8 19.8
V -InputVoltage-V
I
InputRegulation-%
I =0 A
O
I =3 A
O
I =1.5 A
O
t-Time-500ns/Div
PH=5V/Div
V =100mV/Div(ACCoupled)
IN
75
80
85
90
95
100
0 0.5 1 1.5 2 2.5 3 3.5
I -OutputCurrent- A
O
Efficiency-%
V =15V
I
V =10.8V
I
V =12V
I
V =18V
I
V =19.8V
I
-0.3
-0.2
-0.1
0
0.1
0.2
0.3
0 0.5 1 1.5
2
2.5 3
I -OutputCurrent- A
O
OutputRegulation-%
TPS5430
TPS5431
SLVS632E –JANUARY 2006–REVISED SEPTEMBER 2013 www.ti.com
PERFORMANCE GRAPHS
The performance graphs (Figure 15 through Figure 21) are applicable to the circuit in Figure 11. Ta = 25 °C.
unless otherwise specified.
Figure 15. Efficiency vs. Output Current Figure 16. Output Regulation % vs. Output Current
Figure 17. Input Regulation % vs. Input Voltage Figure 18. Input Voltage Ripple and PH Node,
I
O
= 3 A.
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