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SC2603ASKTRT
P1-P3
P4-P6
P7-P9
7
200
7 Semtech Corp.
www
.semtech.com
SC2603A
POWER MANA
GEMENT
Applications Inf
ormation (Cont.)
Lay
out diagram for the SC2603A
Figure 4: SC2603A Lay
out Diagram
Not
e: Heavy lines indicat
e the critical loop carr
ying high pulsating current.
The inductance of the loop needs to be minimized.
Vout
12VIN
+
Cout
2.2
0.1uF
Q1
0.1uF
D1
SC2603A
GND
1
VIN
5
3
CS
6
GATE
2
FB
4
Rb
Ra
Rs
EN/SS
L1
Cin
8
200
7 Semtech Corp.
www
.semtech.com
SC2603A
POWER MANA
GEMENT
Applications Inf
ormation (Cont.)
T
ypical application schematic with 12V input and 24V/1A output
Bill of materials
Item
Quantity
Reference
Part
Vendor
1
1
C1
220uF/16V
Panasonic
2
1
C2
330uF/35V
Nichicon, VR
3
2
C3,C1
0
1uF/16V
Vishay
4
1
C4
0.1uF
Vis
hay
5
1
C5
120pF
Vishay
6
1
C11
1uF/50V
Vishay
7
1
Cc
56nF
Vishay
8
1
D1
C
MSH2-40M
Central Sem
i
9
1
L1
33uH/5.1A (HC8-3
30)
Coiltronic
s
10
1
Q1
IRF7821
IR
11
1
R1
2R2
Vishay
12
1
R2
226k
Vishay
13
1
R4
12.4k
Vishay
14
1
R5
1k
Vishay
15
1
R6
20m
Vishay
16
1
Rc
2.3k
Vishay
17
1
U1
SC
2603A
Semtech
C
4
0.
1
uF
C
5
120pF
U
1
SC
2
6
0
3
A
1
2
3
4
5
6
F
B
GN
D
EN
/
SS
GAT
E
VI
N
C
S
+
C
1
220uF
C
c
56nF
1
2
V
I
N
P
UT
R
6
20m
2
4
V
/1A
O
U
T
PU
T
R
4
12.
4k
R
c
2.
3
k
R
2
226k
+
C
2
330uF
L1
33uH
1
2
C
1
0
1uF
R
1
2R
2
D
1
C
MSH
2-40M
Q1
I
R
F
78
21
C
11
1uF
R
5
1k
C
3
1uF
9
200
7 Semtech Corp.
www
.semtech.com
SC2603A
POWER MANA
GEMENT
Semtech Cor
poration
Po
wer Management Products Division
200 Flynn Road, Camarillo, CA 930
12
Phone: (805)498-2
111 F
AX (805)498-3804
Contact Inf
ormation
Land Patt
ern - SOT23-6
Outline Dra
wing - SO
T23-6
.110 BSC
.037 BSC
DETAIL
aaa
C
SEATING
ccc
C
2X N/2 TIPS
2X
E/2
6
SEE DETAIL
A1
A
A2
bxN
A
.008
1
2
N
E
.060
.114
.063
.122
.010
-
6
A
0.20
1.60
3.10
2.80 BSC
0.95 BSC
.069
1
.50
2.90
.020
0
.25
1.75
0.50
-
EI
L
(L1)
c
01
0.25
PLANE
GAGE
H
2.80
.110
bbb
C
A-B
D
0°
.008
-
.004
.012
.003
(.024)
.018
-
.035
.000
.035
-
-
.045
0.10
0.20
10°
0°
-
10°
1.15
(0.60)
0.45
.024
.009
0.30
0.08
.057
.051
.006
0
.00
.90
0.90
0.22
0.60
-
0.15
1.45
1.30
-
-
1.90 BSC
.075 BSC
A
e1
D
e
B
C
PLANE
D
DATUMS
AND
TO BE DETER
MINED AT DATUM PLANE
CONTROLL
ING DIMENSION
S ARE IN MI
LLIMETERS (ANGL
ES IN DEGREES).
DIMENSION
S "E1" AND
"D" DO NOT INCL
UDE MOLD FLASH,
PROTRUSIONS
3.
OR GAT
E BURRS.
NOTES:
1.
2.
-A-
-B-
-H-
SIDE VIEW
NOM
INCHES
DIMENSION
S
L1
aaa
bbb
ccc
01
N
DIM
c
e
e1
L
E1
E
D
A1
A2
b
A
MIN
MILLIMETE
RS
MAX
MIN
NOM
MAX
DIMENSION
S
INCHES
Y
Z
DIM
G
P
X
C
MILLIMETE
RS
P
(C)
Z
Y
G
.043
.141
.055
(.098)
.037
.024
1.40
(2.50)
0.95
0.60
1.10
3.60
X
DIMENSION
S
INCHES
Y
Z
DIM
G
P
X
C
MILLIMETE
RS
THIS LAND PATT
ERN IS FOR
REFERENCE PURPOSES
ONLY.
CONSULT Y
OUR MANUFACT
URING GROUP TO ENS
URE YOUR
COMPANY
'S MANUFACTUR
ING GUIDELINES ARE MET.
NOTES:
1.
P1-P3
P4-P6
P7-P9
SC2603ASKTRT
Mfr. #:
Buy SC2603ASKTRT
Manufacturer:
Semtech
Description:
Switching Controllers SIMPLE INT COMPENSATED CONT
Lifecycle:
New from this manufacturer.
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