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SC4525DEVB 数据表(PDF) 17 Page - Semtech Corporation

部件名 SC4525DEVB
功能描述  18V, 3A, 350kHz Step-Down Switching Regulator
PDF  21 Pages
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制造商  SEMTECH [Semtech Corporation]
网页  http://www.semtech.com
标志 SEMTECH - Semtech Corporation

SC4525DEVB 数据表(HTML) 17 Page - Semtech Corporation

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© 2011 Semtech Corp.
www.semtech.com
SC4525D
17
Typical Application Schematics
SC4525D
GND
IN
SW
BST
L1
4.7mH
C1
0.33mF
SS/EN
COMP
FB
D2
CMSH3-20M
22.1k
R6
33.2k
22nF
C8
47pF
C5
4.7nF
L1: CoiltronicsDR73-4R7
OUT
2.5V/3A
5V
RSET
C2: Murata GRM 31CR60J476M
C 4
4.7mF
C4: Murata GRM 31CR60J475K
VIN
C2
47mF
C7
R4
60.4k
R5
6.49k
R7
Fig. 10: 350 kHz5 V to2.5V/3 A Step Down Converter
BAT- 54
D1
Figure 10. 350kHz 5V to 2.5V/3A Step-down Converter
SC4525D
GND
IN
SW
BST
L1
3.3 mH
C1
0.33 mF
SS/EN
COMP
FB
D2
B320A
66.5 k
R6
33.2k
22nF
C8
47pF
C5
6.8nF
L1: Coiltronics DR73 -3R3
OUT
1.5V/3A
D1
BAT-54
3.3V
RSET
C2: Murata GRM 31CR60J476M
C4
4.7mF
C4: Murata GRM 32ER71H475 K
VIN
C2
47mF
C7
R4
60.4k
R5
3.74k
R7
Fig.11: 350 kHz3.3 V to1.5V/3 A Step
Figure 11. 350kHz 3.3V to 1.5V/3A Step-down Converter



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