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L7987 数据表(PDF) 31 Page - STMicroelectronics

部件名 L7987
功能描述  Adjustable current limitation
PDF  37 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L7987 数据表(HTML) 31 Page - STMicroelectronics

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L7987
Demonstration board
37
6
Demonstration board
In this section the L7987 demonstration board is described. The default settings are:
Programmed VOUT = 3.3 V
Max. IOUT = 3 A
FSW = 500 kHz
VBIAS = VOUT
Soft-start 3.5 ms
Figure 15. L7987 demonstration board schematic
Table 7. L7987 demonstration board component list
Reference
Part
Package
Note
Manufacturer P/N
C1, C2
4.7
F
1210
X7S/100 V/10%
TDK C3225X7S2A475K
C3, C4
1
F
0805
X7S/100 V/10%
TDK C2012X7S2A105K
C5
47
F
1206
X5R/16 V/20%
TDK C3216X5R1C476M
C6
N. M.
C7
100 nF
0603
10 V
C8
10 nF
0603
10 V
C9
33 nF
0603
10 V
C10
22 nF
0603
10 V
C11
1 nF
0603
10 V
R1, R9, R10
N. M.
R2
100 k
0603
R3, R4
0
0603
R5
68
0603
1% tolerance



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