SC4525A Semtech Corporation, SC4525A Datasheet - Page 17

• Manufacturer Part Number: SC4525A
• Description: 28V 3A Step-Down Switching Regulator
• Manufacturer: Semtech Corporation

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Typical Application Schematics
V
Figure 11. 1MHz 10V-26V to 3.3V/3A Step-down Converter
V
IN
IN
Figure 10. 300kHz 24V to 1.5V/3A Step-down Converter
EVB#d: 300kHz 24V to 1.5V/3A Step-Down Converter
1MHz 10V-26V to 3.3V/3A Step-Down Converter
C4
C7
10nF
4.7mF
C4
C7
10nF
4.7mF
24V
10V – 26V
L1: Coiltronics DR74-6R8
L1: Coiltronics DR74-3R3
22pF
C8
SS/EN
C8
10pF
SS/EN
COMP
COMP
IN
18V Zener
IN
R7
6.81k
C5
2.2nF
43.2k
R7
C5
0.47nF
SC4525A
D3
SC4525A
ROSC
ROSC
1N4148
90.9k
R5
18.2k
D1
R5
GND
BST
GND
BST
SW
FB
C2: Murata GRM31CR60J476M
C4: Murata GRM32ER71H475K
SW
FB
C2: Murata GRM31CR60J476M
C4: Murata GRM32ER71H475K
C1
0.33mF
C1
0.1mF
D2
B330A
D2
B330A
6.8mH
3.3mH
L1
1N4148
L1
D1
33.2k
R4
R6
66.5k
R4
33.2k
R6
14.3k
C2
47mF
C2
47mF
1.5V/3A
OUT
3.3V/3A
OUT
SC4525A
7