Datasheet

40
50
60
70
80
90
R -OnResistance-m
DS(on)
W
V =12V
I
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
35
45
55
65
75
R -OnResistance-m
DS(on)
W
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
V =12V
I
0.795
0.797
0.799
0.801
0.803
0.805
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
V -VoltageReference-V
ref
470
475
480
485
490
495
500
F -OscillatorFrequency-kHz
sw
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
RT =100kW
0
1
2
3
4
3 6 9 12 15 18
V -InputVoltage-V
I
I -ShutdownQuiescentCurrent- A
sd
m
T =150°C
J
T =25°C
J
T =-40°C
J
EN=0V
3.3
3.35
3.4
3.45
3.5
3.55
3.6
ENHysterisisCurrent- Am
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
V =12V,
EN=1.3V
I
TPS54320
www.ti.com SLVS982A –AUGUST 2010–REVISED SEPTEMBER 2010
TYPICAL CHARACTERISTICS
HIGH-SIDE Rdson vs TEMPERATURE LOW-SIDE Rdson vs TEMPERATURE
Figure 1. Figure 2.
VOLTAGE REFERENCE vs TEMPERATURE OSCILLATOR FREQUENCY vs TEMPERATURE
Figure 3. Figure 4.
SHUTDOWN QUIESCENT CURRENT vs
INPUT VOLTAGE EN PIN hysteresis CURRENT vs TEMPERATURE
Figure 5. Figure 6.
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