Datasheet

0.7760
0.7820
0.7880
0.7940
0.8000
0.8060
0.8120
0.8180
0.8240
-50 -25 0 25 50 75 100 125 150
Vref-VoltageReference-V
T -JunctionTemperature-°C
J
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
MinimumControllableDutyRatio-%
3
3.25
3.50
3.75
4
VIN=12V
100
110
120
130
140
Tonmin-MinimumControllableOnTime-ns
-50 -25 0 25 50 75 100 125 150
T -JunctionTemperature-°C
J
VIN=12V
4
3 8 13 18 23 28
V -InputVoltage-V
I
CurrentLimitThreshold- A
3.5
3
T =25°C
J
T =-40°C
J
T =150°C
J
1.90
2
2.10
-50 -25 0 25 50 75 100 125 150
I -SlowStartChargeCurrent- A
SS
m
T -JunctionTemperature-°C
J
3 8 13 18 23 28
0
5
10
15
20
25
30
V -OutputVoltage-V
O
V -InputVoltage-V
I
I =2 A
O
I =1 A
O
25
50
75
100
125
150
0 0.2 0.4 0.6 0.8 1 1.2
P -PowerDissipation-W
D
T -JunctionTemperature-°C
J
TPS54233
SLUS859B –OCTOBER 2008– REVISED FEBRUARY 2011 www.ti.com
TYPICAL CHARACTERISTICS (continued)
MINIMUM CONTROLLABLE ON MINIMUM CONTROLLABLE DUTY
VOLTAGE REFERENCE TIME RATIO
vs vs vs
JUNCTION TEMPERATURE JUNCTION TEMPERATURE JUNCTION TEMPERATURE
Figure 4. Figure 5. Figure 6.
SS CHARGE CURRENT CURRENT LIMIT THRESHOLD
vs vs
JUNCTION TEMPERATURE INPUT VOLTAGE
Figure 7. Figure 8.
SUPPLEMENTAL APPLICATION CURVES
TYPICAL MAXIMUM OUTPUT VOLTAGE MAXIMUM POWER DISSIPATION
vs vs
INPUT VOLTAGE JUNCTION TEMPERATURE
Figure 9. Figure 10.
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