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ST1S09 bảng dữ liệu(PDF) 10 Page - STMicroelectronics

tên linh kiện ST1S09
Giải thích chi tiết về linh kiện  2A, 1.5 MHz PWM step-down switching regulator with synchronous rectification
PDF  18 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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ST1S09 bảng dữ liệu(HTML) 10 Page - STMicroelectronics

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Typical performance characteristics
ST1S09
10/18
Figure 15.
Efficiency vs temperature
Figure 16.
Over voltage protection vs
temperature
Figure 17.
Over voltage protection vs
temperature
Figure 18.
Over voltage protection hyst. vs
temperature
Figure 19.
Load transient
Figure 20.
Inhibit transient
VI=5V, VO=1.2V, IO=100mA to1A, L=3.3µH, CI=4.7µF,
CO=22µF
VI=5V, VINH=0 to 2V, IO=2A, L=3.3µH, CI=4.7µF, CO=22µF,
VO=3.3V
40
45
50
55
60
65
70
75
80
85
90
95
100
-75
-50
-25
0
25
50
75
100 125 150 175
T [°C]
V
O=1.2V
V
O=3.3V
V
I=5V, IO=100mA
40
45
50
55
60
65
70
75
80
85
90
95
100
-75
-50
-25
0
25
50
75
100 125 150 175
T [°C]
V
O=1.2V
V
O=3.3V
V
I=5V, IO=100mA
V
SW=1.2V
0.8
0.9
1
1.1
1.2
1.3
1.4
-75
-50
-25
0
25
50
75
100 125
150
175
T [°C]
OVP ON
V
I=5V, VO=3.3V, CFB=100nF
Resistor 1.2k
from V
I and VSW
V
SW=1.2V
0.8
0.9
1
1.1
1.2
1.3
1.4
-75
-50
-25
0
25
50
75
100 125
150
175
T [°C]
OVP ON
V
I=5V, VO=3.3V, CFB=100nF
Resistor 1.2k
from V
I and VSW
0.8
0.9
1
1.1
1.2
1.3
1.4
-75
-50
-25
0
25
50
75
100 125
150
175
T [°C]
V
SW=0.8V
V
I=5V, VO=3.3V, CFB=100nF
Resistor 1.2k
from VI and VSW
OVP ON
0.8
0.9
1
1.1
1.2
1.3
1.4
-75
-50
-25
0
25
50
75
100 125
150
175
T [°C]
V
SW=0.8V
V
I=5V, VO=3.3V, CFB=100nF
Resistor 1.2k
from VI and VSW
OVP ON
0
2
4
6
8
10
12
14
-75
-50
-25
0
25
50
75
100
125
150
175
T [°C]
V
SW=0.8V
V
I=5V, VO=3.3V, CFB=100nF
Resistor 1.2k
from V
I and VSW
OVP ON
0
2
4
6
8
10
12
14
-75
-50
-25
0
25
50
75
100
125
150
175
T [°C]
V
SW=0.8V
V
I=5V, VO=3.3V, CFB=100nF
Resistor 1.2k
from V
I and VSW
OVP ON
V
O
I
O
V
O
I
O
V
INH
V
O
I
O
V
INH
V
O
I
O



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