Datasheet

Typical performance characteristics ST1S12XX, ST1S12XX12, ST1S12XX18
12/20 Doc ID 14314 Rev 5
Figure 10. Efficiency vs. temperature Figure 11. Supply current vs. temperature
Figure 12. Quiescent current vs. temperature Figure 13. Enable voltage vs. temperature
Figure 14. Enable voltage vs. temperature Figure 15. Reference line regulation vs.
temperature
I
OUT
=100mA
I
OUT
=700mA
0
10
20
30
40
50
60
70
80
90
100
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
Efficiency [%]
V
IN
=V
EN
=3V, V
OUT
=1.2V
I
OUT
=100mA
I
OUT
=700mA
0
10
20
30
40
50
60
70
80
90
100
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
Efficiency [%]
V
IN
=V
EN
=3V, V
OUT
=1.2V
1
2
3
4
5
6
7
8
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
I
SUPPLY
[mA]
V
IN
=V
EN
=3V, V
OUT
=1.2V, No Load
1
2
3
4
5
6
7
8
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
I
SUPPLY
[mA]
V
IN
=V
EN
=3V, V
OUT
=1.2V, No Load
350
370
390
410
430
450
470
490
510
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
I
SUPPLY
[µA]
V
IN
=V
EN
=3.6V, V
FB
=0.65V, C
IN
=C
OUT
=10µF, No Switching
350
370
390
410
430
450
470
490
510
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
I
SUPPLY
[µA]
V
IN
=V
EN
=3.6V, V
FB
=0.65V, C
IN
=C
OUT
=10µF, No Switching
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
V
EN
[V]
ON
OFF
V
IN
=2.5V, I
OUT
=10mA, C
IN
=C
OUT
=10µF, V
OUT
=1.8V
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
V
EN
[V]
ON
OFF
V
IN
=2.5V, I
OUT
=10mA, C
IN
=C
OUT
=10µF, V
OUT
=1.8V
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
V
EN
[V]
ON
OFF
V
IN
=5.5V, I
OUT
=10mA, C
IN
= C
OUT
=10µF, V
OUT
=1.8V
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
V
EN
[V]
ON
OFF
V
IN
=5.5V, I
OUT
=10mA, C
IN
= C
OUT
=10µF, V
OUT
=1.8V
-0.6
-0.4
-0.2
-0
0.2
0.4
0.6
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
LINE [%V
OUT
/ΔV
IN
]
V
IN
=V
EN
= 2.5V to 5.5V, C
IN
=C
OUT
=10µF, I
OUT
=10mA, V
OUT
=1.8V
-0.6
-0.4
-0.2
-0
0.2
0.4
0.6
-75 -50 -25 0 25 50 75 100 125 150 175
T [°C]
LINE [%V
OUT
/ΔV
IN
]
V
IN
=V
EN
= 2.5V to 5.5V, C
IN
=C
OUT
=10µF, I
OUT
=10mA, V
OUT
=1.8V