sc1485itstr Semtech Corporation, sc1485itstr Datasheet - Page 5

• Manufacturer Part Number: sc1485itstr
• Description: Dual Synchronous Buck Pseudo Fixed Frequency Power Supply Controller
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
Pin Configuration
Pin Descriptions
P
2005 Semtech Corp.
n i
1
1
1
1
1
2
3
4
5
6
7
8
9
1
0
2
3
4
1
#
P
n i
E
V
P
V
V
V
N
P
T
B
L I
C
G
D
F
S
N
D
O
D
L
O
P /
G
S
M I
B
X
C
S
N
D
H
U
a
L
N
D
T
S
m
2
1
1
A
D
1
T
A
P
1
2
1
2
V
2
2
2
e
1
1
2
P
P
G
+
P
C
e r
P
G
B
E
a
O
S
F
o
P
G
o l f
T
i t
o f
TSSOP-28
5
i t c
m
u
h
e
n i
o
G
h
o
n
u
o
a
r u
a
u
o r
s
o l l
a
p t
V
s i
a
a
p
e
w
o
p t
w
e t
e t
t s i
. e
N
e r
a v
e t
u
s
b
p
d
t s
w
F
t u
r e
r e
t u
s
D
n
p
e
e l
y l
b
r o
d
d
n
, d
B
u
n i
e t
u
d
n i
c
. 1
a
o v
i r
i l t
i r
n
g
p
n
P /
o v
G
p y
o v
g
a
k c
e r
e v
s
e v
b
o
o r
p
P
t c
s i
o
m
p
a t l
e
o
p y
a t l
p
d
a
y l
a t l
S
e f
o
a
u
w
o i
s n
o
t i
e
s s
n i
o
o
s u
g
d
n
t i c
A
a
g
o v
e r
r e
g
w
u
u
n
p
e
. d
n i
n i
(
V
s s
e
e
e
o
p t
u j
p t
r e
r o
h t
. t u
c n
a t l
p
g
E
f
S
d
p
s
n
o r
n i
u
u
s i
. t u
o t
e
e
e
t c
a
u
g
f t
h t
f t
c
o t
m
C
p
m
n
s n
. p
e v
e
o
p
o i
f
r o
o r
r o
u
V
o
C
o
r o
n
d
s
n i
f t
n i
e
0
n
n
d
n
S
u
o
e
a r
n i
n
5 .
h t
h t
e
. e
r o
p
g
a
n
f o
S
s n
i w
n i
e
p
n i
t c
u
h
n
e
n
e
V
A
p
t c
. t u
f t
F
h t
a
e
e
h t
o t
o i
a
u
o l
h
2
N
o t
o l
t c
o l
r o
e
g i
V
f t
o t
p
n
a
w
M
h t
P
i w
g
t a
B
a
V
o t
h
r o
a
f
l u
1
O
h t
e r
a
r o
s
i c
n
h t
A
C
n
o t
n
s
d l
d i
S
e
a
d
s
o
e r
d
T
c r
F
d i
C
h t
h
a
o l
a r
u
e
g
o
e
o
s
t i u
o
b
h t
e
A
c
p t
e
g
a
w
n
1
n i
t s i
u
M
d l
t o
e
o r
. 2
a
e t
M
0
t u
p t
. y r
h
n
a r
s
O
o t
b
r o
f o
n
g i
u
s
u
O
. t u
o t
r d
e l
F
m
. 2
S
g
e
p
m
C
5
h
S
o l
d
h
s n
p
F
c i
v i
c
o
V
G
O
Notes:
(1) Only available in tape and reel packaging. A reel
contains 2500 devices.
(2) Lead free product. This product is fully WEEE, RoHS
and J-STD-020B compliant.
F
s
v i
. y l
M
Ordering Information
w
E
e
C
a
n
r e
d i
S
n i
E
U
o
d i
c
a r
n
s -
T
O
o
S
p
U
e
a
. s
g
T
e
T
e
r e
n
d i
S
m
u
s
s
p
A
2
s
t c
n
e r
s
g
u l l
w
D
F
a
e
e
c i
2
e
h
w
o l
a
a
t i c
o t
c t i
s
E
p
g i
e
t c
a
e t
n
M
c t i
o t
c
s i
c
S
c
s T
d
r o
h
. h
e r
a
a
1
P
o t
o
O
S
C
o t
. h
r d
s
e t
p
a
0
a
u
G
s
S
a
C
1
h
. r
o t
a
p
i t c
t f
v i
h t
s i
d
n
N
t u
O
4
F
1
i c
r e
e l
D
d
. e
e
o t
8
t a
D
4
E
a v
V
h
o t
e
d
5
8
m
h t
h t
o
T
, r
S
a
2
v
o
e t
T I
. r
h t
5
u
s i
e
S
c i
R
w
f
i f
t a
/
T I
p t
S
r o
e
A
e x
c
T
o
n
1
e
S
p
T
t u
o
C I
O
. 2
h t
u
µ
n i
R
O
d
R
T
t n
p t
F
e
N
t a
D
R
U
T
n i
f
c
i w
t u
, 2
o r
R
b
(
S
T
o l
) 2
u
h t
t o
C
h t
. 2
m
o (
n i
o
k c
a
e
o t
s u
n
d
) n
i f
a
P
V
o l
d
c
c u
e t l
m
l u
O
1
c y
c
a
s
o t
u
o t
u l
f r
o
U
f o
e
. d
e l
F
s n
n
) r
T
s
o r
p
d
h t
t e
2
c
d
n i
c
u
m
o t
e
e
e
o
t c
o t
g
h t
a r
a l
n
5
o
o i
e
e
r o
n
V
m
y
V
u
n
n
e
p t
a
S
o t
4 (
c i
S
t c
P
T
T
h t
b
m
S
t u
U
p
S
S
4
a
o i
e l
c
e
o
A
SC1485
S
0
www.semtech.com
S
S
c
a
M
c
. n
d
s
2
O
k
p
a
O
O
c
o t
e
O
o
a
a
p
c y
U
o t
P
P
u
S
g
C (
t i c
a
V
c r
T
2 -
2 -
e l
e
F
i c
s
2
S
r o
C
e
(
t e
E
) s
8
8
) 1
o t
S
a
M
T
f
o t
r o
. r
n
A
h t
)
d
o
f I .
. 2
e
- n