Datasheet

2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4
I (mA)
BIAS
I (A)
OUT
1.6
+125 C°
+25 C°
- °40 C
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2.0
2.5 3.0 3.5 4.0 4.5 5.0
I (mA)
BIAS
V (V)
BIAS
5.5
+125 C°
+25 C°
- °40 C
500
475
450
425
400
375
350
325
300
-50
-25 0 25 50 75 100
I (nA)
SS
JunctionTemperature( C)°
125
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
V Low-LevelPGVoltage(V)
OL
0
2 4
6 8 10
12
PGCurrent(mA)
4.0
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
1.0
1.5 2.0 2.5 3.0 3.5 4.0 4.5
CurrentLimit(A)
V V-
BIAS OUT
(V)
5.0
+125 C°
+25 C°
- °40 C
V =0.8V
OUT
TPS74801
www.ti.com SBVS074J –JANUARY 2007– REVISED JANUARY 2012
TYPICAL CHARACTERISTICS (continued)
At T
J
= +25°C, V
IN
= V
OUT(TYP)
+ 0.3V, V
BIAS
= 5V, I
OUT
= 50mA, V
EN
= V
IN
, C
IN
= 1μF, C
BIAS
= 4.7μF, and C
OUT
= 10μF,
unless otherwise noted.
BIAS PIN CURRENT vs BIAS PIN CURRENT vs
I
OUT
AND TEMPERATURE (T
J
) V
BIAS
AND TEMPERATURE (T
J
)
Figure 15. Figure 16.
SOFT-START CHARGING CURRENT (I
SS
) vs
TEMPERATURE (T
J
) LOW-LEVEL PG VOLTAGE vs CURRENT
Figure 17. Figure 18.
CURRENT LIMIT vs (V
BIAS
– V
OUT
)
Figure 19.
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