SC4520 Semtech Corporation, SC4520 Datasheet - Page 3

• Manufacturer Part Number: SC4520
• Description: 3A Step-Down Switching Regulator
• Manufacturer: Semtech Corporation

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Unless specified: V
T
Notes:
(1) The required minimum input voltage for a regulated output depends on the output voltage and load condition.
(2) Guaranteed by design.
POWER MANAGEMENT
Electrical Characteristics (Cont.)
A
P
F
F
F
R
F
F
V
V
V
V
S
V
V
M
M
A
B
E
V
E
T
T
2006 Semtech Corp.
= T
a r
a r
A
B
e
e
B
B
o
e
C
C
C
C
w
C
C
b
o
n
n
a
i n i
O
O
O
O
O
O
e
e
a
a t l
a
g
o
o
R
c t i
i x
n
n
M
M
M
M
M
M
J
n I
o t
o t
d
d
b
b
u
m
e v
t s
c s
c s
= -40°C to 125°C.
A
P
P
P
P
P
P
m
g
p
b
b
t a l
e l
e l
h
i H
u
V
V
P
P
P
P
O
M
e
t u
C
a
a
n i
u
o
o
m
S
o i
m
n I
O
k c
k c
C
C
n i
n i
n i
n i
n
n
C
E
c c
g
r u
w
O
O
C
d
d
p
n
u
T
M
M
P
B
S
i S
o t
M
e r
T
S
c t i
c u
c u
u
r u
t u
p t
V
V
P
P
E
o
h
p
o
w
T
a
t n
o
o
k n
t u
e r
V
o
h
R
a t
a t
e r
S
T
u
h
i x
c t i
a t l
a t l
R
(
o
t s
) 2
c r
w
h
e r
t n
c n
c n
s
IN
m
B
t e
a t l
C
e r
h
h
g
g
c t i
e
V
s
a i
= 12V, V
u
e
e
o
y r
e
e
r u
s
g
h
D
o
m
(
C
h
d l
s
) 2
h
o
e
e r
a t l
L
T
u
r u
o
d l
C
C
n i
y t
h
G
t n
d l
g
e r
r u
e r
r u
e
a
e
C
COMP
e r
n i
t n
e r
s
c y
h
(
t n
t n
) 2
o
e l
= 0.8V, V
d l
S
Y
BST
V
M
I
I
E
E
I
F
E
O
O
= V
B
B
T
L
H
H
O
IN
L
+ 5V, EN = tied to V
E
E
V
N
N
C
O
=
=
0
M
4
9 .
P
5
5
4 .
D
C
=
V
V
0
0
V
I
u
V
C
V
m
m
O
C
IN
V
V
1
y t
O
O
C
, SW = open.
C
I
3
R
2 .
I
<
S
N
M
F
F
V
V
M
S
O
O
B
B
W
c
V
P
W
O
P
M
M
V
D
V
c y
S
b
b
=
=
P
C
P
=
=
=
I ,
=
C
T I
N I
O
e
e
l a f
e l
r
0
1
M
S
=
1
s i
o l
o l
3
<
1
O I
P
W
6 .
0 .
2 .
A
n i l
1
=
w
w
n i
A
2
V
V
=
N
0
5
g
4
g
0
h t
h t
2
µ
V
S
4
V
%
0 .
A
e r
e r
0
(
) 1
0
V
s
s
m
h
h
o
o
, A
d l
d l
0
M
1
5
7 .
8
1
0
5
N I
1 .
5
8
0
0
4
0 -
T
0
3
8
7 -
0
4
0
2
1
+
7
3
1
1
Y
2 .
2 .
5
5
2
8
8 .
3 .
6 .
7 .
3 .
3
0
0
0
0
0
P
0
0
5
5
0
M
1
1 -
SC4520
1
www.semtech.com
8 .
1
4
3
1
1 -
A
1
1
5 .
5
0
5
1
0
X
0
0
6
U
m
µ
V
A
N
m
M
µ
µ
µ
µ
µ
V
%
V
V
V
V
V
V
V /
V /
T I
A
A
A
A
A
A
h
V /
o
S