sc2621 Semtech Corporation, sc2621 Datasheet - Page 3

• Manufacturer Part Number: sc2621
• Description: Sc2621 500 Khz Voltage-mode Pwm Controller With Linear Power Regulator
• Manufacturer: Semtech Corporation

Unless specified: V
Notes:
(1) This device is ESD sensitive. Use of standard ESD handling precautions is required.
(2) Guaranteed by design, not tested in production.
POWER MANAGEMENT
Electrical Characteristics
P
L
R
G
L
i L
V
G
G
L
S
R
L
i L
O
R
M
D
D
D
I
I
O
U
O
O
S
V
p n
p n
o
D
o
n i
a
e
C
w
e
a
l o
n
e l
a
a
a
p
H
L
, H
p
u
u
2003 Semtech Corp.
e n
e n
a
a
a
y t i
a r
e f
e f
m
t u
t u
p t
p t
n i
e t
e t
F
r e
e
i x
C
w
e
i
R
a t
d
d
c t
R
n
B
D
r a
e r
e r
p
m
t u
t u
m
R
R
i t a
(
i s i
O
O
) 2
S
S
i s i
g
G
R
S
R
R
h
L
L
e
e
u
n
I
n
A
t e
e
s f f
s f f
o
n i
p n
S
i S
a
p u
a
e
n i
e
g n
g n
o
S
m
e c
g
e c
g
g n
N
m
u
e t
n i
g
g
o
o
i k
r e
E
e
u
u
t e
t e
k n
g
i c r
t u
o
p
F /
u
u
p
r u
p
a l
a l
D
F /
t c
g n
F
r r
o n
B
(
V
y l
V
a l
a l
) 2
S
t i l
V
C
e c
g n
i B
e r
u
a
G
o i t
o i t
a
r o
C
o i
o
o
a
o i t
o i t
d u
R
e
y t
i l l
o
e v
i l l
r u
a t l
C
a t l
a
d n
q
r u
s a
n
n
t c
n
g n
a t l
j e
CC
g n
n i
C
C
n
n
e u
A
r u
e
C
e r
a l r
e r
g
g
w
c e
o i
r u
r u
m
g
= 5V to 16V; V
c y
e
e r
C
e
(
t n
(
n
i T
) 2
) 2
d i
t n
i T
p
e
n
e r
e r
o i t
y c
l p
r u
t n
e l
m
i p
h t
m
(
(
) 2
) 2
t n
t n
e r
i f i
n
e
g n
(
e
) 2
(
) 2
t n
r e
i T
m
e
FB
= V
O
; V
S
t
t
t
t
BST
S
y
S
S
S
D
A
V
V
R
N I
N I
R
V
m
F
C
M
C
O
R
K
K
- V
O
S
m
_
E
A
_
_
L
_
b
L
D
D
D
L
F
D
X
PN
l o
H
H
L
L
= 5V to 8.2V; T
I
L
O
D
=
V
V
F
0
IN
B
IN
6
o t
A
=
6
=
T
=
V
F
= -25 to 85°C
V
A
3
3
1
V
r o
V
S
3
2 .
=
3 .
L
A
S
V
O
V
V
CC
i w
L
I
D
L
V
O
C
2
i w
B
C
, V
G
G
V
,
,
D
S
F
° 5
g n
L
T
V
o
=
T
A
A
=
D
o t
g n
F
V -
B
V
=
A
R
n
IN
, C
T
T
0
B
V
1
5
CC
=
3
t a
d
E
E
P
o t
2 .
t a
=
0
=
0
4 .
N
t i
=
V
2
V
0
=
=
=
C
8
3
o i
=
L
o t
, V
C
° 5
CC
p
0
2 .
3 .
o t
L
D
6
6
8
5 .
F
n
1
L
, C
4
5 .
5 .
2 .
=
V
O
, V
V
0
s
=
=
V
A
1
L
CC
V
V
V
G
V
3
4
o
V
1
3
V
3 .
V
a
o t
2
3 .
CC
CC
=
d
V
n
n
F
1
1
F
=
=
4
2
V
1
V
1
2
2
V
V
0
0
M
4
4 .
4 .
0
n i
9
9
0
5
5
0
0
T
0 -
5
5 .
5 .
0
0
0
0
0
1
7
9
2
2
4
3
4
8
4
1
y
0
2
1
1
4 .
4 .
8 .
9 .
9 .
2 .
0
2 .
7
7
9
2
0
0
0
1
0
0
0
p
0
0
0
www.semtech.com
SC2621
0
0
M
1 -
6
5 .
0
0
0
5 .
0
a
4 .
4 .
4 .
0 .
0
0
0
x
5
5
U
M
/ V
k
m
m
m
m
m
d
d
u
n
i n
s n
s n
s n
%
%
%
%
%
%
V
V
H
V
H
B
A
A
B
s u
A
A
V
A
A
s t
z
z