Datasheet

1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
0
10 20 30 40
ChangeinV (%)
OUT
I (mA)
OUT
50
+125 C°
+25 C°
-40 C°
ReferredtoI =50mA
OUT
0.050
0.025
0
-0.025
-0.050
-0.075
-0.100
-0.125
-0.150
50
500 1000 1500 2000 2500
ChangeinV (%)
OUT
I (mA)
OUT
3000
+125 C°
+25 C°
- °40 C
ReferredtoI =50mA
OUT
0.05
0.04
0.03
0.02
0.01
0
-0.01
-0.02
-0.03
-0.04
-0.05
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
ChangeinV (%)
OUT
V V-
IN OUT
(V)
4.5
T = 40- °
J
C
T
J
=+25°C
T
J
=+125°C
0
500 1000 1500 2000 2500
I (mA)
OUT
3000
200
150
100
50
0
DropoutVoltage(mV)
+125 C°
+25 C°
- °40 C
300
250
200
150
100
50
0
0.9
1.4 1.9 2.4 2.9 3.4
DropoutVoltage(mV)
V V-
BIAS OUT
(V)
3.9
+125 C°
+25 C°
- °40 C
I =3.0A
OUT
200
180
160
140
120
100
80
60
40
20
0
0.9
1.4 1.9 2.4 2.9 3.4
DropoutVoltage(mV)
V V-
BIAS OUT
(V)
3.9
+125 C°
+25 C°
-40°C
I =1.5A
OUT
TPS74401-EP
www.ti.com SBVS122B –MARCH 2010–REVISED SEPTEMBER 2010
TYPICAL CHARACTERISTICS
At T
J
= +25°C, V
OUT
= 1.5 V, V
IN
= V
OUT(TYP)
+ 0.3 V, V
BIAS
= 3.3 V, I
OUT
= 50 mA, C
IN
= 1 mF, C
BIAS
= 1 mF, C
SS
= 0.01 mF, and C
OUT
= 10
mF, unless otherwise noted.
LOAD REGULATION LOAD REGULATION
Figure 3. Figure 4.
V
IN
DROPOUT VOLTAGE vs
LINE REGULATION I
OUT
AND TEMPERATURE (T
J
)
Figure 5. Figure 6.
V
IN
DROPOUT VOLTAGE vs V
IN
DROPOUT VOLTAGE vs
V
BIAS
– V
OUT
AND TEMPERATURE (T
J
) V
BIAS
– V
OUT
AND TEMPERATURE (T
J
)
Figure 7. Figure 8.
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