TPS54425_10 Datasheet, PDF (9/22 Pages) Texas Instruments – 4-A OUTPUT SINGLE SYNCHRONOUS STEP DOWN SWITCHER WITH INTEGRATED FET ( SWIFT™)

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1200
1000
800
600
400
200
0
-50
100
TPS54425
SLVSA84 – AUGUST 2010
TYPICAL CHARACTERISTICS
V_CC CURRENT
vs
JUNCTION TEMPERATURE
V_CC SHUTDOWN CURRENT
vs
JUNCTION TEMPERATURE
8
6
4
2
0
50
100
150
T_J - Junction Temperature - °C
Figure 1.
EN CURRENT
vs
EN VOLTAGE
0
-50
0
50
100
150
T_J - Junction Temperature - °C
Figure 2.
1.05-V OUTPUT VOLTAGE
vs
OUTPUT CURRENT
1.1
80
1.075
V_I = 18 V
V_I = 12 V
60
1.05
V_I = 5 V
40
1.025
20
0
0
5
10
15
20
EN - Input Voltage - V
Figure 3.
1
0
1
2
3
4
I_O - Output Current - A
Figure 4.
Copyright © 2010, Texas Instruments Incorporated
9
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