Datasheet

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
3 8 13 18 23 28
V -OutputVoltage-V
O
V -InputVolatage-V
I
0.75
1.25
1.75
2.25
2.75
3.25
I =2 A
O
3.75
3 8 13 18 23 28
V -InputVoltage-V
I
CurrentLimitThreshold- A
3.5
4.0
4.5
5.0
5.5
T =25°C
J
T =150°C
J
T =-40°C
J
1.90
2.00
2.10
-50 -25 0 25 50 75 100 125 150
I -SlowStartChargeCurrent- A
SS
m
T -JunctionTemperature-°C
J
1.95
2.05
100
110
120
130
140
-50 -25 0 25 50 75 100 125 150
Tonmin-MinimumControllableOnTime-ns
T -JunctionTemperature-°C
J
VIN=12V
-50 -25 0 25 50 75 100 125 150
MinimumControllableDutyRatio-%
T -JunctionTemperature-°C
J
9.0
9.5
10.0
10.5
11.0
11.5
12.0
12.5
13.0
13.5
14.0
VIN=12V
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
TPS54232
SLVS876C –NOVEMBER 2008–REVISED OCTOBER 2013 www.ti.com
TYPICAL CHARACTERISTICS (continued)
MINIMUM CONTROLLABLE DUTY
VOLTAGE REFERENCE MINIMUM CONTROLLABLE ON 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 MINIMUM OUTPUT VOLTAGE TYPICAL MAXIMUM OUTPUT VOLTAGE
vs vs
INPUT VOLTAGE INPUT VOLTAGE
Figure 9. Figure 10.
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