TPS5430 Datasheet, PDF (5/22 Pages) Texas Instruments – 5.5-V to 36-V, 3-A STEP-DOWN SWIFT CONVERTER

TPS5430
www.ti.com
TYPICAL CHARACTERISTICS
SLVS632 – JANUARY 2006
OSCILLATOR FREQUENCY
vs
JUNCTION TEMPERATURE
530
520
510
500
490
480
470
460
−50 −25
0
25
50
75 100 125
T − Junction Temperature − °C
Figure 1.
SHUTDOWN QUIESCENT CURRENT
vs
INPUT VOLTAGE
25
ENA = 0 V
NON-SWITCHING QUIESCENT CURRENT
vs
JUNCTION TEMPERATURE
3.5
3.25
3
2.75
2.5
−50 −25 0 25 50 75 100 125
T_J − Junction Temperature − °C
Figure 2.
VOLTAGE REFERENCE
vs
JUNCTION TEMPERATURE
1.230
20 T _J = 125°C
1.225
15 T _J = 27°C
T _J = –40°C
10
1.220
1.215
5
0 5 10 15 20 25 30 35 40
V _I −Input V oltage −V
Figure 3.
ON RESISTANCE
vs
JUNCTION TEMPERATURE
180
V _I = 12 V
170
160
150
140
130
120
110
100
90
80
−50 −25 0
25 50 75 100 125
T _J −Junction Temperature − °C
Figure 5.
1.210
-50
-25
0
25 50 75 100 125
T_J - Junction Temperature - °C
Figure 4.
INTERNAL SLOW START TIME
vs
JUNCTION TEMPERATURE
9
8.5
8
7.5
7
−50 −25 0
25
50
75 100 125
T_J − Junction Temperature − °C
Figure 6.
5