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L6920DB 数据表(PDF) 6 Page - STMicroelectronics

部件名 L6920DB
功能描述  Synchronous rectifier step up converter
PDF  16 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6920DB 数据表(HTML) 6 Page - STMicroelectronics

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Typical performance
L6920DB
6/16
4
Typical performance
Figure 2.
Efficiency vs output current @ VOUT = 3.3V
Figure 3.
Efficiency vs output current @ VOUT = 5V
Figure 4.
Start up voltage vs output current @ Vout = 5V & Vout = 3.3V
40
45
50
55
60
65
70
75
80
85
90
95
0.1
1
10
100
1000
Vin=2.4V
Vin=1.2V
L6920DB
Vout=3.3V
L=10µH
Cout=47µF
Cin=10µF
0
10
20
30
40
50
60
70
80
90
100
0.1
1
10
100
1000
Vin=3.6V
Vin=2.4V
Vin=1.2V
L6920DB
Vout=5V
L=10µH
Cout=47µF
Cin=10µF
VStart up vs . out put cur rent
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
0.1
1
10
100
1000
Out put cu rrent (mA)
VStart up v s. output current
600
700
800
900
1000
1100
1200
1300
1400
1500
1600
0.1
1
10
100
1000
Output current (mA)
Vout =3.3V
Vout =5V



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