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L5987 数据表(PDF) 33 Page - STMicroelectronics

部件名 L5987
功能描述  3 A step-down switching regulator
PDF  42 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5987 数据表(HTML) 33 Page - STMicroelectronics

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L5987 - L5987A
Application information
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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
GRM32ER61E226KE15
22
μF, 25V
Murata
C2
GRM32ER61E226KE15
22
μF, 25V
Murata
C3
2.2nF, 50V
C4
10nF, 50V
C5
330pF, 50V
C6
220nF, 25V
R1
4.99 k
Ω, 1%, 0.1W 0603
R2
2.49k
Ω, 1%, 0.1W 0603
R3
330
Ω, 1%, 0.1W 0603
R4
2 k
Ω, 1%, 0.1W 0603
R5
100k.
D1
STPS2L25V
2A DC, 25V
STMicroelectronics
L1
MSS1038-522NL
5.2
μH, 30%, 5.28A,
DCRMAX=22mΩ
Coilcraft
L5987/A
R3
330
L1 5.2uH MSS1038
C2
22u
25V
R4
2K
R1 4.99K
C3 2.2nF
C4 10hF
C5 330pF
1
5
4
32
6
7
8
D1
STPS2L25
R2
2.49k
Vout=1.8V
C1
22u
25V
C6
220n
25V
R5
150k
Vin=2.9V - 18V
VCC
INH
GND
FB
SYNCH
OUT
COMP
FSW



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