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ST1S09 数据表(PDF) 10 Page - STMicroelectronics

部件名 ST1S09
功能描述  2 A, 1.5 MHz PWM step-down switching regulator with synchronous rectification
PDF  18 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST1S09 数据表(HTML) 10 Page - STMicroelectronics

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Typical performance characteristics
ST1S09
10/18
Doc ID 13632 Rev 4
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 = 5 V, VO = 1.2 V, IO = 100 mA to1 A, L = 3.3 µH,
CI = 4.7 µF, CO = 22 µF
VI = 5V, VINH = 0 to 2 V, IO = 2 A, L = 3.3 µH, CI = 4.7 µF,
CO = 22 µF, VO = 3.3 V
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
Ω 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
Ω 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
Ω from V
I 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
Ω 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
Ω 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
Ω 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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