STEVAL-ISA046V2 STMicroelectronics, STEVAL-ISA046V2 Datasheet - Page 9
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STEVAL-ISA046V2
Manufacturer Part Number
STEVAL-ISA046V2
Description
BOARD EVAL BASED ON ST1S09
Manufacturer
STMicroelectronics
Type
DC/DC Switching Converters, Regulators & Controllersr
Specifications of STEVAL-ISA046V2
Design Resources
STEVAL-ISA046V2 Gerber Files STEVAL-ISA046V2 Schematic STEVAL-ISA046V2 Bill of Material
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
3.3V
Current - Output
2A
Voltage - Input
2.7 ~ 5.5 V
Regulator Topology
Buck
Frequency - Switching
1.5MHz
Board Type
Fully Populated
Utilized Ic / Part
ST1S09I
Input Voltage
2.7 V to 5.5 V
Output Voltage
3.3 V
Product
Power Management Modules
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
ST1S09
Other names
497-6373
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STEVAL-ISA046V2
Manufacturer:
STMicroelectronics
Quantity:
1
ST1S09
Figure 9.
Figure 11. PWM Switching frequency vs.
Figure 13. Under voltage lock out threshold
1.9
1.9
1.8
1.8
1.7
1.7
1.6
1.6
1.5
1.5
1.4
1.4
1.3
1.3
1.2
1.2
1.1
1.1
-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
2
1
1
3.9
3.9
3.8
3.8
3.7
3.7
3.6
3.6
3.5
3.5
3.4
3.4
3.3
3.3
3.2
3.2
3.1
3.1
-1
-1
1
1
0
0
-75
-75
4
4
3
3
-75 -50 -25
-75 -50 -25
-75
-75
V
V
-50
-50
V
V
O
O
-50
-50
@1.2V
@1.2V
O
O
V
V
@1.2V
@1.2V
O
O
Line regulation vs. temperature
temperature
vs. temperature
@1.2V
@1.2V
-25
-25
-25
-25
0
0
0
0
0
0
25
25
25
25
V
V
25
25
I
I
= from 2.7V to 5.5V, I
= from 2.7V to 5.5V, I
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
T [°C]
50
50
50
50
50
50
75 100 125 150 175
75 100 125 150 175
75
75
75
75
100 125 150 175
100 125 150 175
100 125 150 175
100 125 150 175
V
V
I
I
=5V, V
=5V, V
I
I
O
O
=10mA
=10mA
O
O
= 100mA
= 100mA
FB
FB
Doc ID 13632 Rev 4
=0.6V
=0.6V
Figure 10. Load regulation vs. temperature
Figure 12. Maximum duty cycle vs.
Figure 14. Efficiency vs. output current
90
90
88
88
86
86
84
84
82
82
80
80
78
78
76
76
74
74
72
72
70
70
-0.1
-0.1
-0.3
-0.3
-0.5
-0.5
95
85
75
65
55
45
35
25
1.1
1.1
0.9
0.9
0.7
0.7
0.5
0.5
0.3
0.3
0.1
0.1
-75
-75
-75 -50 -25
-75 -50 -25
0
V
V
O
O
@3.3V
@3.3V
-50
-50
V
V
O
O
@1.2V
@1.2V
temperature
Typical performance characteristics
-25
-25
V
O
=1.2V
500
0
0
0
0
25
25
25
25
Iout [mA]
T [°C]
T [°C]
T [°C]
T [°C]
1000
50
50
V
50
50
IN
=5V
V
V
I
I
= 5V, I
= 5V, I
75
75
75 100 125 150 175
75 100 125 150 175
100
100
O
O
V
V
from10mA to 2A
from10mA to 2A
I
I
=5V, V
=5V, V
1500
125
125
FB
FB
=0.6V
=0.6V
150
150
V
O
=3.3V
2000
9/18
175
175