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L7985 Datasheet(PDF) 29 Page - STMicroelectronics

Part # L7985
Description  Voltage feed-forward
PDF  42 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L7985 Datasheet(HTML) 29 Page - STMicroelectronics

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DocID022446 Rev 7
29/42
L7985
Application information
42
6.7
Application circuit
In Figure 18 the demonstration board application circuit is shown.
Figure 18. Demonstration board application circuit
Table 9. Component list
Reference
Part number
Description
Manufacturer
C1
UMK325BJ106MM-T
10
F, 50 V
Taiyo Yuden
C2
GRM32ER61E226KE15
22
F, 25 V
Murata
C3
3.3 nF, 50 V
C4
33 nF, 50 V
C5
100 pF, 50 V
C6
470 nF, 50 V
R1
4.99 k
, 1%, 0.1 W 0603
R2
1.1 k
, 1%, 0.1 W 0603
R3
330
, 1%, 0.1 W 0603
R4
1.5 k
, 1%, 0.1 W 0603
R5
150 k
1%, 0.1 W 0603
D1
STPS3L40
3A DC, 40 V
STMicroelectronics
L1
MSS1038-103NL
10
H, 30%, 3.9 A,
DCRMAX=35 m
Coilcraft



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