Datasheet

7.5
8
7.5
MinimumDutyRatio − %
7
7.25
-50 -25 0 25 125
T − JunctionTemperature − C
J
o
1007550
I ShutdownCurrent − A
SD
m−
25
ENA =0V
T =125 C
J
o
T =27 C
J
o
T =-40 C
J
o
0 40
V − InputVoltage − V
I
15105
5
20
15
10
20 353025
8
9
8.5
t InternalSlowStartTime − ms
SS
−
7
7.5
-50 -25 0 25 125
T − JunctionTemperature − C
J
o
1007550
V =12V
I
-50 -25 0 25 125
T − JunctionTemperature − C
J
o
1007550
80
180
150
170
160
r On-StateResistance − m
DS(on)
W−
90
120
130
140
100
110
-50 -25 0 25 125
T − JunctionTemperature − C
J
o
1007550
1.22
1.23
1.225
V VoltageReference − V
ref
−
1.21
1.215
1.22
1.23
1.225
V VoltageReference − V
ref
−
1.21
1.215
120
180
150
170
160
MinimumControllableOnTime − ns
130
140
-50 -25 0 25 125
T − JunctionTemperature − C
J
o
1007550
460
-50 -25 0 25 125
T − JunctionTemperature − C
J
o
1007550
460
470
530
500
520
510
f OscillatorFrequency − kHz−
480
490
-50 -25 0 25 125
T − JunctionTemperature − C
J
o
1007550
V =12V
I
3
3.5
3.25
I OperatingQuiescentCurrent − mA
Q
−
2.5
2.75
TPS5420
www.ti.com SLVS642E –APRIL 2006–REVISED SEPTEMBER 2013
TYPICAL CHARACTERISTICS
OSCILLATOR FREQUENCY OPERATING QUIESCENT CURRENT MINIMUM CONTROLLABLE ON TIME
vs vs vs
JUNCTION TEMPERATURE JUNCTION TEMPERATURE JUNCTION TEMPERATURE
Figure 1. Figure 2. Figure 3.
VOLTAGE REFERENCE ON STATE RESISTANCE INTERNAL SLOW START TIME
vs vs vs
JUNCTION TEMPERATURE JUNCTION TEMPERATURE JUNCTION TEMPERATURE
Figure 4. Figure 5. Figure 6.
SHUTDOWN QUIESCENT CURRENT MINIMUM CONTROLLABLE DUTY RATIO
vs vs
INPUT VOLTAGE JUNCTION TEMPERATURE
Figure 7. Figure 8.
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