SC2446 Semtech Corporation, SC2446 Datasheet - Page 4

• Manufacturer Part Number: SC2446
• Description: Dual-Phase Single or Two Output Synchronous Step-Down Controller
• Manufacturer: Semtech Corporation

Unless specified: AVCC = PVCC = V
o L
o L
o L
D
D
M
E
B
POWER MANAGEMENT
P
C
G
G
i H
S
S
O
O
O
S
O
G
G
C
O
O
O
O
C
O
O
O
O
E
Electrical Characteristics (Cont.)
V
V
a
i r
i r
o
o
o
x
x
f f u
r u
o
o
h
h
a
a
h g
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2004 Semtech Corp.
w
w
w
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a r
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t f
t f
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t f
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a t l
a
p t
p t
p t
p t
a
p t
p t
p t
p t
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e t
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m i
r e
i s -
i s -
i s -
S -
o l r
o l r
o l r
S -
o l r
i s -
S -
n
n
n r
n r
m
t u
t u
t u
t u
t u
t u
t u
t u
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t n
n
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D
D
N
N
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D
D
d e
a t
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l a
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G
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o -
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w
w
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C
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V
V
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p a
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f f
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t f
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g
g
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b
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BST2
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I
V
V
V
I
= 12V, SYNC= 0, R
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V
V
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1
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1
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N
T
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N
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2
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1
1 -
1
d n
d n
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0 2
0
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=
=
3
3
4 2
4 2
4 2
4 2
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= 51.1k , -40°C < T
5 .
0 0
V
0 0
V
5 .
0 0
0 0
8 .
8 .
S
S
P
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C
P
P
p 0
p 0
C
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4
V
S
V
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V
V
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V
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2
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8 .
B
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B
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2 .
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1
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V
V
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i s
2 .
2 .
4 2
4 2
i s
a e
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4 2
4 2
g n
1 -
V
V
g n
V
V
i s
i s
V
V
m
A
g n
g n
= T
A
J
< 85°C
V
V
V
R
P
N I
E
V
2
F
M
C
0
0
N I
C
-
0
3 .
7 .
-
n i
-
. 0
. 0
. 0
5 0
5 0
1 0
. 0
. 0
V
V
5 7
T
1
3
0
0
1
2 7
1
1
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0 2
0 9
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R
R
y
2
7
7
7
7
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1
2 .
E
5 .
9 .
E
www.DataSheet4U.com
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4 .
2 .
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SC2446
4
x a
7 .
5 .
+
. 0
1 0
U
m
m
m
m
m
m
n
s n
s n
s n
s n
s n
V
V
V
V
V
V
V
V
V
V
A
A
A
A
V
A
A
V
A
A
s t i