sc1175 Semtech Corporation, sc1175 Datasheet - Page 4

• Manufacturer Part Number: sc1175
• Description: Sc1175 Low-power Dual Synchronous Dc/dc Controller With Current-sharing Circuitry
• Manufacturer: Semtech Corporation

POWER MANAGEMENT
Unless Specified: V
NOTES:
(1) Specification refers to application circuit.
(2) The soft start pin sources 25µA to an external capacitor. The converter operates in synchronous mode
above the soft start transition threshold and in asynchronous mode below it.
(3) Power good is an open collector pulled low when the output voltage is outside the ±10% window.
(4) This device is ESD sensitive. Use of standard ESD handling precautions is required.
(5) 200ns maximum at 70
Electrical Characteristics (Cont.)
P
D
D
D
D
D
S
S
S
S
P
F
F
n I
A
o
o
o
L
L
L
L
e
o
o
o
o
p
2004 Semtech Corp.
d l
d l
t f
t f
t f
t f
w
t u
R
a
i S
i S
S
S
d
r e
A
S
S
S
S
B
B
o
o
B
k n
k n
M
i T
a t
a t
a t
a t
u
u
a
a
a i
G
c r
c r
m
k c
k c
E
t r
t r
t r
t r
s
C
C
o
e
e
T
e
C
E
E
T
o
r u
r u
C
C
V
E
a r
d
C
C
h
n
n
e r
e r
r u
o
r u
R
a
d
a
r u
r u
n
W
a t l
b
e r
g r
t n
t n
t i s
e r
CC
e r
e r
e l
n i
g
t n
e
t n
o i
= 4.75 to 5.25V, GND = PGND = 0V, FB = V
t n
t n
d
e
C
n
o
K
(
w
r u
) 2
n
(
e r
) 3
e
e
t n
(
) 2
°.
O
, 0mV < (CS(+) - CS(-)) < 60mV , T
D
D
S
B
L
B
1
y
L
-
S
C
c n
N I
0
0
S
-
T
-
O
%
0
P
T
V
, 1
4
L
h
P
%
N
L
o r
G
N
O
G
d
-
I I
U
+
D
N
-
o
u
n
=
d
D
T
N
N I
e t
y t
o
T I
D
D
u
=
D
L
L
s u
y t
2
M I
L
O I
c
5
0
=
- ,
=
=
c y
c
=
V
N
m
1
N I
2
c y
3
e l
5
7 .
S
5 .
o
5 .
2
e l
V
d
5
V
V
e
V
J
= 25°C
1
M
5
5 .
5 .
2 .
1
1
N I
0
5
T
5
+ 0
1
1
2
3
2
0
Y
1
0
4 .
5 .
3 .
5
%
P
0
M
V
1
www.semtech.com
SC1175
A
O
5
1
U
0
X
T
U
%
N
I
µ
µ
V
s n
A
A
A
A
V
V
V
V
L
A
A
T I
M I
O
U
S
T