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L6920DB 数据表(PDF) 11 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) 11 Page - STMicroelectronics

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L6920DB
Detailed description
11/16
Figure 9.
Test circuit
Table 5. Output voltage connection
Vout = 3.3V
FB pin connected to OUT (see application circuit)
Vout = 5V
FB pin connected to GND
1.8V < Vout < 5.5V
FB pin connected to a resistive divider V
out
1.23V
1
R4
R5
--------
+
⎝⎠
⎛⎞
⋅
=
V
BATT
LBI
V
OUT
V
REF
GND
___
LBO
_____
SHDN
FB
1
2
3
4
5
6
7
8
L6920DB
V
BATT=1.5V
V
OUT=2.5V
C4
100nF
C1
47
µF
C2
47
µF
L1 10
µH
R4
200K
Ω
R5
200K
Ω
R3
R1
R2
V
BATT
LBI
V
OUT
V
REF
GND
___
LBO
_____
SHDN
FB
1
2
3
4
5
6
7
8
L6920DB
V
BATT=1.5V
V
OUT=2.5V
C4
100nF
C1
47
µF
C2
47
µF
L1 10
µH
R4
200K
Ω
R5
200K
Ω
R3
R1
R2
L6920DB



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