SC2621A Semtech Corporation, SC2621A Datasheet - Page 12

• Manufacturer Part Number: SC2621A
• Description: Voltage Mode PWM Controller
• Manufacturer: Semtech Corporation

Bill of Materials (25V Input)
Bill of Materials (25V Input)
Bill of Materials (25V Input)
Bill of Materials (25V Input)
Bill of Materials (25V Input)
POWER MANAGEMENT
Applications Information (Cont.)
T T T T Typical Application Schematics with 25V In
Item
ypical Application Schematics with 25V In
ypical Application Schematics with 25V In
ypical Application Schematics with 25V In
ypical Application Schematics with 25V Input
2007 Semtech Corp.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
9
www.DataSheet4U.com
3.3V/1A
5V
560uF
SPD14N06
C8
Quantity
+
0
Q2
1
1
1
1
3
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
R11
11.3k
R12
2k
Reference
C1
C9
C4
C10
C5,C11,C13
C6,C12
C8
C14
C15
D1
D2
L1
Q3,Q1
Q2
R1
R3
R4
R6
R9
R10,R15
R11
R12
R13
U1
0
R3
3.3k
C14
4.7nF
R15
22k
C15
1nF
1
2
3
4
5
6
7
0
R4
Vin=25V
BST
OCS
COMP
FB
LDOG
LDFB
NC
U1
SC2621A
499k
Note: Zener diode D2 is required when Vin is 18V or higher.
Part
10uF/35V
10uF/6.3V
1500uF/35V
1500uF/6.3V
1uF
2.2nF
560uF
4.7nF
1nF
D1N4148
BZX84B16LT1
2.2uH
IRLR7821
SPD14N06
732
3.3k
499k
301
1R0
22k
11.3k
2k
2.43k
SC2621A
GND
DRV
VCC
DH
NC
PN
DL
0
14
13
12
11
10
9
8
D2
BZX84B16LT1
C13
1uF
put
put
put
R1
732
put
12
Vendor
Murata
Vishay
Rubycon
Rubycon, MBZ
Vishay
Vishay
Sanyo
Vishay
Vishay
Any
ON Semi
Cooper Electr. Tech
IR
Infineon
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
Vishay
SEMTECH
D1
D1N4148
C11
1uF
IRLR7821
C5
1uF
IRLR7821
Q1
Q3
0
1
C1
10uF
R9
1R0
C12
2.2nF
L1
2.2uH
+
0
C4
1800uF
2
R10
22k
R13
2.43k
R6
301
C6
2.2nF
SC2621A
1800uF
www.semtech.com
+
5V /10A
C10
0
C9
10uF