SC4508 SEMTECH [Semtech Corporation], SC4508 Datasheet - Page 4

• Manufacturer Part Number: SC4508
• Description: Buck or Buck-Boost(Inverting) Current Mode Controller
• Manufacturer: SEMTECH [Semtech Corporation]

POWER MANAGEMENT
Pin Configuration
Pin Descriptions
2004 Semtech Corp.
P
SS/SHDN
1
1
n i
1
2
3
4
5
6
7
8
9
1
-
0
2
1
#
OUT
CS
T
P
S
H
n i
S
C
A
P
V
O
V
E
O
P
F
S /
F
C
N
G
G
O
R
N
D
R
A
1
2
3
S
U
B
(MLPQ-12 4x4)
- B
C
S
E
N
N
M
H
VDD
VREF
M
D
a
C
D
T
+
12
F
D
D
D
P
m
TOP VIEW
A
4
N
e
L
OSC
11
NC
1
5
G
C
S
b
c
N
A
P
E
E
C
c
O
n i
o
S
P
n i
i t
2 .
a
o
m
e
s
f o
o
n
o
r r
r r
u
a
a
r u
o
s
e t
e t
p
m
i c
o l
a
p
w
i c
d
e t
5
r o
r o
m
e
s t
e r
c
n r
n r
a
COMP
o l
p
a l l
AGND
w
V
p
r e
a l l
o
p
f
i c
s i
y l
a
r o
a
r d
n
e
10
g
a
a
a t
n
e
o t
0
e r
s t
o t
o t
o l
. y l l
6
s n
m
m
n
g
s n
o v
v i
d
t r
g
2 .
h
f r
e
o r
e f
f r
f r
f e
p
p
o r
r e
e
t a
s
e
p
t c
5
t a
a t l
9
8
7
i f i l
i f i l
e r
i c
s n
e r
u
a
n i
o r
e r
. n i
. V
u
o i
o i
n
o i
o
i s t
a l l
g
n
q
e
r e
r e
c n
m
q
e
. d
n
u
. n
. d
. e
u
n
d
u
C
o t
k n
p t
e
n i
e
n
n i
n
e
V
p
o
b
e
c n
B
f r
u
o
n
p
n i
n i
o
R
e v
n
y
w t
f t
- n
y c
p y
t u
u
e r
n
. y
g
E
FB+
FB-
PGND
h t
t r
f
r o
p t
e
n i
o
r o
a
F
q
p
p
e
n i
s
C
c
k r
. t u
e v
s s
u
. n i
t e
u
e
s t
o t
g
h t
c
e
p r
s i
x
f
t r
a
o r
c n
V
n i
e
n i
a
e t
a
C
A
o
n i
p
h t
n
R
p
m
p
s
n r
n i
1
o
a
G
f y
g
e
. t u
. t u
e
E
e
u
n
i c
e t
l a
N
n i
C
o r
. s
F
n
x
F
c
o t
. D
e t
n r
e
p
O
C
a
- P
m
c
C
c
t c
. r
. t u
p
n r
a
4
M
o
e
a
a
o
M
T
t l
1
a r
Notes:
(1) Only available in tape and reel packaging. A reel
contains 3000 devices.
(2) Lead free product. This product is fully WEEE and
RoHS compliant.
n
a
a
n
P
i c
n
Ordering Information
h
n
0
O
a r
c l
m
n
s
e
c
e
0
o t
o t
e
S
S
o
n
r u
t c
K
a
c i
d
t c
f r
u
c s
C
F
p
H
e r
A
e
c r
a
E
4
c
P
a
o r
o t
v
o
z
G
n
a
D
5
e
. T
t i c
n i
c i
c
n
m
s t
o t
N
p
0
e
E
d
g
e
u
O
r o
a
8
. D
a r
F
c u
o r
V
p
e
O
1
i c
M I
g
U
u
s n
C I
m
5 .
u
b
o t
S
o
a t
o t
T
n
n
L
e
e
c i
M
C
e
E
c n
f r
d
T
t c
s
w t
1
s
H
R
w
e r
m
c
o t
o r
p
o i
e
n i
e
. z
T
a
n i
a l
. A
s
e
m
n
o t
e
(
p
A
) 2
g
t s i
n
n
U
r r
a
G
s
e
B
s
V
s
r o
i c
h t
r o
N
h
f
p y
e
D
s u
o r
s i
o t
u
. D
a
b
e
D
P
M
d t
a
n i
m
f r
m
e
p
q
A
s s
L
o
g
o t
w t
n i
o r
u
p
C
P
V
w
t a
f i l
m
m
e
i w
K
Q
D
a
n
P
o i
e i
e
t l u
n
A
1 -
D
G
w
h t
O
n
d
n
. r
G
N
h
p i
2
o t
S
V
a
A
e
C
(
. D
E
) 1
e l
C
D
f
n
G
0
o
P
D
1 .
n
v
N
V
o t
G
a i
n
C
. D
S
u
100
T
N
a
e
A
. s
F
S
t c
e
n
4 -
. D
G
. 0
d
T
m
S /
c
N
° 0
h
o l
e
N
65
www.semtech.com
C
A
SC4508
. p
H
o
e
a r
o
D
C
c t
. S
D
p
a r
R
m
o t
N
o t
o
m
a
c i
o t
n
n
s i
s
1
p
n
t e
g
e
5
s
u
p
e
c
° 0
t e
p
u
h t
e t
e l l
T (
C
e
h t
d
J
d
e
)