Datasheet
Table Of Contents
- Table 1. Device summary
- 1 Application circuit
- 2 Pin configuration
- 3 Maximum ratings
- 4 Electrical characteristics
- 5 Application information
- 5.1 Description
- 5.2 External components selection
- 5.3 Output capacitor (VOUT > 2.5 V)
- 5.4 Output capacitor (0.8 V < VOUT < 2.5 V)
- 5.5 Output voltage selection
- 5.6 Inductor (VOUT > 2.5 V)
- 5.7 Inductor (0.8 V < VOUT < 2.5 V)
- 5.8 Function operation
- 6 Layout considerations
- 7 Diagram
- 8 Typical performance characteristics
- Figure 9. Voltage feedback vs. temperature
- Figure 10. Oscillator frequency vs. temperature
- Figure 11. Max duty cycle vs. temperature
- Figure 12. Inhibit threshold vs. temperature
- Figure 13. Reference line regulation vs. temperature
- Figure 14. Reference load regulation vs. temperature
- Figure 15. ON mode quiescent current vs. temperature
- Figure 16. Shutdown mode quiescent current vs. temperature
- Figure 17. PMOS ON resistance vs. temperature
- Figure 18. NMOS ON resistance vs. temperature
- Figure 19. Efficiency vs. temperature
- Figure 20. Efficiency vs. output current@Vout = 5 V
- Figure 21. Efficiency vs. output current@Vout = 3.3 V
- Figure 22. Efficiency vs. output current@Vout = 12 V
- 9 Package mechanical data
- Table 6. Power SO-8 (exposed pad) mechanical data
- Figure 23. Power SO-8 (exposed pad) dimensions
- Figure 24. Power SO-8 (exposed pad) recommended footprint
- Table 7. Power SO-8 (exposed pad) tape and reel mechanical data
- Figure 25. Power SO-8 (exposed pad) tape and reel dimensions
- Table 8. DFN8 (4X4) mechanical data
- Figure 26. DFN8 (4x4) dimensions
- Table 9. DFN8 (4x4)tape and reel mechanical data
- Figure 27. DFN8 (4x4)tape and reel dimensions
- 10 Revision history

Typical performance characteristics ST1S10
20/29 Doc ID 13844 Rev 5
Figure 13. Reference line regulation vs.
temperature
Figure 14. Reference load regulation vs.
temperature
-0.2
-0.1
0
0.1
0.2
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
Line [%(V
OUT
/V
IN
)]
V
IN-A
=V
IN-SW
=V
INH
from 2.5 to 20V, V
OUT
=0.8V, I
OUT
=10mA
-0.2
-0.1
0
0.1
0.2
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
Line [%(V
OUT
/V
IN
)]
V
IN-A
=V
IN-SW
=V
INH
from 2.5 to 20V, V
OUT
=0.8V, I
OUT
=10mA
-0.5
-0.2
0.1
0.4
0.7
1
1.3
-25 0 25 50 75 100 125
TEMPERATURE [°C]
Load [%V
OUT
/I
OUT
]
V
IN-A
=V
IN-SW
=V
INH
=12V, I
OUT
from 10mA to 3A
-0.5
-0.2
0.1
0.4
0.7
1
1.3
-25 0 25 50 75 100 125
TEMPERATURE [°C]
Load [%V
OUT
/I
OUT
]
V
IN-A
=V
IN-SW
=V
INH
=12V, I
OUT
from 10mA to 3A
Figure 15. ON mode quiescent current vs.
temperature
Figure 16. Shutdown mode quiescent current
vs. temperature
Figure 17. PMOS ON resistance vs.
temperature
Figure 18. NMOS ON resistance vs.
temperature
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
I
Q
(mA)
V
IN-A
=V
IN-SW
=12V, V
INH
=1.2V, V
OUT
=0.8V
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
I
Q
(mA)
V
IN-A
=V
IN-SW
=12V, V
INH
=1.2V, V
OUT
=0.8V
0
1
2
3
4
5
6
7
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
I
Q
(µA)
V
IN-A
=V
IN-SW
=12V, V
INH
=GND, V
OUT
=0.8V
0
1
2
3
4
5
6
7
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
I
Q
(µA)
V
IN-A
=V
IN-SW
=12V, V
INH
=GND, V
OUT
=0.8V
20
70
120
170
220
270
320
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
R
DSON
-P[mΩ]
V
IN
=12V, I
SW
=750mA
20
70
120
170
220
270
320
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
R
DSON
-P[mΩ]
V
IN
=12V, I
SW
=750mA
50
60
70
80
90
100
110
120
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
R
DSON
-N[mΩ]
V
IN
=12V, I
SW
=750mA
50
60
70
80
90
100
110
120
-50 -25 0 25 50 75 100 125
TEMPERATURE [°C]
R
DSON
-N[mΩ]
V
IN
=12V, I
SW
=750mA