st8r00 STMicroelectronics, st8r00 Datasheet - Page 10

• Manufacturer Part Number: st8r00
• Description: Micropower 1a Synchronous Step-up Dc-dc Converter
• Manufacturer: STMicroelectronics

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Figure 10. Inhibit voltage vs temperature
Figure 12. Line regulation vs temperature
Figure 14. Oscillator frequency vs
-0.2
-0.2
-0.4
-0.4
-0.6
-0.6
-0.8
-0.8
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
2.5
2.5
1.5
1.5
0.5
0.5
1.7
1.7
1.5
1.5
1.3
1.3
1.1
1.1
0.9
0.9
0.7
0.7
0.5
0.5
-1
-1
1
1
0
0
3
3
2
2
1
1
0
0
-75
-75
-75
-75
-75 -50 -25
-75 -50 -25
V
V
V
V
I
I
=4V, V
=4V, V
I
I
= from 4V to 6V, I
= from 4V to 6V, I
-50
-50
-50
-50
V
V
temperature
I
I
INH
INH
=V
=V
-25
-25
-25
-25
from 0 to 2V, I
from 0 to 2V, I
INH
INH
=5V, No Inductor, No Load
=5V, No Inductor, No Load
0
0
0
0
0
0
O
O
=1A
=1A
25
25
O
O
25
25
25
25
=50mA
=50mA
V
V
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
O
O
50
50
50
50
@9.5V
@9.5V
50
50
75
75
75
75
75
75
100 125 150 175
100 125 150 175
100 125 150 175
100 125 150 175
100 125 150 175
100 125 150 175
ON
ON
OFF
OFF
Figure 11. Inhibit voltage vs temperature
Figure 13. Load regulation vs temperature
Figure 15. Max oscillator duty cycle vs
-0.2
-0.2
-0.4
-0.4
-0.6
-0.6
-0.8
-0.8
97.5
97.5
92.5
92.5
87.5
87.5
82.5
82.5
100
100
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
2.5
2.5
1.5
1.5
0.5
0.5
-1
-1
95
95
90
90
85
85
80
80
1
1
0
0
3
3
2
2
1
1
0
0
-75
-75
-75
-75
-75
-75
V
V
V
V
V
V
I
I
I
I
I
I
=5V, I
=5V, I
=V
=V
=6V, V
=6V, V
-50
-50
-50
-50
-50
-50
INH
INH
temperature
=5V, V
=5V, V
O
O
INH
INH
from 100mA to 1A
from 100mA to 1A
-25
-25
-25
-25
-25
-25
from 0 to 2V, I
from 0 to 2V, I
FB
FB
=GND, No Inductor
=GND, No Inductor
0
0
0
0
0
0
O
O
25
25
25
25
=50mA
=50mA
25
25
V
V
O
O
@9.5V
@9.5V
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
50
50
50
50
50
50
75
75
75
75
75
75
100 125 150 175
100 125 150 175
100 125 150 175
100 125 150 175
100 125 150 175
100 125 150 175
ON
ON
OFF
OFF