sc483itstrt Semtech Corporation, sc483itstrt Datasheet - Page 3

• Manufacturer Part Number: sc483itstrt
• Description: Sc483 Dual Synchronous Buck Pseudo-fixed-frequency Power-supply Controller
• Manufacturer: Semtech Corporation

Test Conditions: V
POWER MANAGEMENT
Electrical Characteristics (Cont.)
P
C
E
F (
O
O
M
V
V
i D
F
O
L I
C
P
F
C
C
O
O
O
O
P
P
P
Z
2005 Semtech Corp.
B
e
a
a
r r
O
O
S
G
G
G
o
u
n
v
M I
r u
r u
r u
u
u
u
v
i n i
B
c s
o r
u
r e
a r
p t
i T -
p t
p t
p t
r o
, 1
r e
t n
A
U
U
D
D
D
e r
e r
e r
m
t l
u t
h
V
t u
S
C -
t u
t u
t u
V -
T
T
m
C -
o r
m
F
C
t n
t n
t n
L
L
U
a
n r
u
P
, 1
, 1
o
E
B
o
o
e
t e
V
g r
U
O
O
, e
m
o r
V
o
u
l l
r u
o r
o -
C
i L
i L
a t l
w
a
o
2
m
V
V
c r
n
r e
v
v
r e
e
s s
k
T
V
O
o
a t l
e r
m
m
d
r e
r e
n
e t
O
O
g
p
n I
e
O
a
h
R
m
r e
B
f f
n i
t i
t i
e
r a
h t
V -
V -
U
U
t n
t c
g
e r
g
p
A
u
e
C
p
T
g
V -
i T
e
BAT
e
t u
p t
e r
T
T
P (
N (
F
t a
s
o i
o
o
s
r a
r u
=
2
2
S
m
s i
T
a
h
o
a t l
a t l
t u
C
R
s
r o
B
= 15V, EN/PSV1=EN/PSV2 = 5V, VCCA1 = VDDP1 = VCCA2 = VDDP2 = 5V, V
o
e
n
e r
t a
o
2
e
h
t l u
a t l
h
a t
e
n I
S
a
r u
i s
g
a i
e r
g
g
V
d l
5 .
n
l o
r o
t n
n
h
T
p
a
c n
v i t
e r
g
e
e
o
s
s
D
g
) d
u
h
V
t u
s
v i t
e
a t l
n i
e
d t
O
e r
h
F
F
t n
e
) e
e
C
(
o
) e
) 1
R
F
a
a
a l
g
s f f
o
g
s
r u
d l
(
a
l u
l u
e
w
) 2
h
y
e
e r
t e
t l u
s
o
- t
- t
n
s i
d l
t n
a t
O
O
U
U
c n
T
T
e
1
2
C
V
R
R
E
D
P
P (
P (
P (
P (
P (
F
i S
F
W
W
W
W
B
B
C
T
T
N
G
o
L
k n
O
O
G
G
G
G
G
i
i
i
i
h t
h t
h t
h t
n
P /
C
N
N
N
h
o f
n i
N
N
N
N
N
d
=
=
g i
D
A
1
S
e r
e r
e r
e r
D
D
D
D
D
c r
t i
e r
m
h
1
5
V
o i
=
-
s
s
s
s
e
-
-
-
-
-
g
M
0
A
p
, 1
p
p
p
L I
d
4
n
L
L
L
L
L
u
0
e
e
e
e
M I
5 .
t a l
X
X
X
X
) X
a
s
k
E
t c
t c
t c
t c
b
, )
, )
, )
, )
V
N
o i
o
o t
o t
o t
o t
P /
E
R
R
R
e v
o t
, n
N
L I
L I
L I
n i
n i
n i
n i
S
M I
M I
M I
5
P
P /
O
e t
e t
e t
e t
V
5 .
G
= k
=
=
V
2
S
n r
n r
n r
n r
V
D
5
1
2
V
l a
l a
l a
l a
=
T
0
0
h
=
G
=
k
k
e r
e r
e r
e r
3
e r
5
N
5
. f
. f
. f
. f
s
V
D
V
h
o
d l
M
n i
2
OUT1
0
1
1 -
T
4
° 5
9
5
1
2
+
+
3 -
1 -
5 .
2
5
1
7
y
0
3
0
5
0
0
1
1
5
2
2
0
0
= V
C
0
6
0
0
p
0
6
0
0
0
6
6
5
0
1
OUT2
=1.25V, R
M
a
x
4 -
TON1
1
1 -
1 -
1 -
M
7
1
+
+
1 -
4 -
1 -
0
° 0
3
8
4
9
9
7
1
1
5 .
6
n i
%
0 .
5
0
= R
9
0
0
2
C
6
0
2
2
0
7
TON2
o t
www.semtech.com
V
1
= 1M
2
1
M
+
+
5
2
+
+
1
2
C
9 -
2 -
0
0
0
1
6
8 -
1
1
1
SC483
5
3
2
2
° 5
2
a
1
4 .
C
2
7
0
5
1
%
0 .
0
5
0
0
0
0
0
x
5
6
C
A
U
m
m
m
m
m
m
k
µ
µ
µ
i n
s n
s n
µ
%
%
%
%
V
V
V
A
A
A
V
V
V
V
V
V
s
s t