STEVAL-ISA044V1 STMicroelectronics, STEVAL-ISA044V1 Datasheet - Page 17
![BOARD EVAL BASED ON ST1S10](/photos/9/31/93105/steval-isa044v1_sml.jpg)
STEVAL-ISA044V1
Manufacturer Part Number
STEVAL-ISA044V1
Description
BOARD EVAL BASED ON ST1S10
Manufacturer
STMicroelectronics
Type
DC/DC Switching Converters, Regulators & Controllersr
Specifications of STEVAL-ISA044V1
Design Resources
STEVAL-ISA044V1 Gerber Files STEVAL-ISA044V1 Schematic STEVAL-ISA044V1 Bill of Material
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Current - Output
3A
Voltage - Input
2.5 ~ 18V
Regulator Topology
Buck
Frequency - Switching
900kHz
Board Type
Fully Populated
Utilized Ic / Part
ST1S10
Input Voltage
2.5 V to 18 V
Product
Power Management Modules
Silicon Manufacturer
ST Micro
Silicon Core Number
ST1S10
Kit Application Type
Power Management - Voltage Regulator
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
ST1S10
Other names
497-8216
ST1S10
8
Figure 9.
Figure 11. Max duty cycle vs. temperature
Figure 13. Reference line regulation vs.
830
830
830
820
820
820
810
810
810
800
800
800
790
790
790
780
780
780
770
770
770
760
760
760
-0.1
-0.1
-0.2
-0.2
92
92
90
90
88
88
86
86
84
84
82
82
80
80
0.2
0.2
0.1
0.1
0
0
-50
-50
-50
-50
-50
-50
-50
-25
-25
-25
-25
-25
-25
-25
Typical performance characteristics
Unless otherwise specified, refer to the typical application circuit under the following
conditions: T
I
Voltage feedback vs. temperature
temperature
OUT
V
V
IN-A
IN-A
=V
=V
= 10 mA, C
0
0
IN-SW
IN-SW
0
0
0
0
0
V
V
V
V
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
IN
IN
=V
=V
IN-A
IN-A
=V
=V
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
INH
INH
=V
=V
25
25
INH
INH
25
25
25
25
25
from 2.5 to 20V, V
from 2.5 to 20V, V
IN-SW
IN-SW
=12V, V
=12V, V
J
= 25°C, V
=V
=V
INH
INH
IN
50
50
50
50
50
OUT
OUT
50
50
=12V, V
=12V, V
= 4.7 µF + 0.1 µF, C
=0.8V, I
=0.8V, I
OUT
OUT
75
75
FB
FB
75
75
75
75
75
=0V
=0V
IN
OUT
OUT
=0.8V, I
=0.8V, I
=10mA
=10mA
= V
100
100
100
100
100
OUT
OUT
100
100
IN-SW
Doc ID 13844 Rev 4
=10mA
=10mA
125
125
125
125
125
125
125
= V
OUT
IN-A
Figure 10. Oscillator frequency vs.
Figure 12. Inhibit threshold vs. temperature
Figure 14. Reference load regulation vs.
1.2
1.2
1.1
1.1
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
= 22 µF, L1 = 3.3 µH.
1.4
1.4
1.2
1.2
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
-0.2
-0.2
-0.5
-0.5
= V
1
1
1.3
1.3
0.7
0.7
0.4
0.4
0.1
0.1
1
1
0
0
-50
-50
1
1
-50
-50
-25
-25
INH
-25
-25
= 12 V, V
-25
-25
temperature
temperature
Typical performance characteristics
0
0
V
V
V
V
IN-A
IN-A
IN-A
IN-A
0
0
=V
=V
=V
=V
0
0
IN-SW
IN-SW
IN-SW
IN-SW
SYNC
V
V
25
25
IN-A
IN-A
TEMPERATURE [°C]
TEMPERATURE [°C]
=2.5V, V
=2.5V, V
=V
=V
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
TEMPERATURE [°C]
=V
=V
25
25
INH
INH
25
25
IN-SW
IN-SW
=12V, I
=12V, I
= GND, V
OUT
OUT
=V
=V
50
50
=0.8V, I
=0.8V, I
INH
INH
OUT
OUT
50
50
50
50
=12V, V
=12V, V
from 10mA to 3A
from 10mA to 3A
OUT
OUT
75
75
=10mA
=10mA
75
75
OUT
FB
FB
75
75
=0V
=0V
= 5 V,
100
100
100
100
100
100
17/26
125
125
125
125
125
125