9
dc2269aaf
DEMO MANUAL DC2269A-A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
schematic DiaGram
VO
S0
+R
VO
U
T1
CO
5
100uF
6.
3V
1210
V
O
UT
1
CI
N5
10uF
25V 1210
V
IN
1
C2
O
PT
CI
N6
10uF
25V 1210
R3
8
10
VO
S0
-R
C9 47uF
0805
6.
3V
C
O
MP
1A
CO
2
100uF
6.
3V
1210
CO
7
100uF
6.
3V
1210
P2
V
O
UT
0
R2
1
10K
R6
0
L1
1uH
R3
6 10
C6
O
PT
R2
0
4.
22k
1%
VO
S0
+R
VO
U
T1
R9
O
PT
P6
R3
9
100
OP
T
C8
C1
1
O
PT
VO
SN
S0
-
VDD3
3
R4
0
O
PT
1210
CI
N3
10uF
25V 1210
R8
O
PT
GP
IO1
B
GP
IO0
B
R1
1
10K
R3 OPT
R3
2
O
PT
0805
P5
U1
LT
M
4676E
Y
VOU
T0
A1
VOU
T0
A2
VOU
T0
A3
GND
A4
SN
U
B0
A5
VOU
T0
B1
VOU
T0
B2
VOU
T0
B3
GND
B4
GND
B5
VOU
T0
C1
VOU
T0
C2
VOU
T0
C3
GND
C4
TSN
S0A
D5
ISN
S1A-
G2
IN
TV
CC
G9
SC
L
E6
RUN0
F5
ALER
T
E5
TSN
S0B
C5
GND
A8
GND
A9
GND
A10
VI
N
0
A1
1
VI
N
0
A1
2
GND
B8
GND
B9
SW
0
B1
0
VI
N
0
B1
1
VI
N
0
B1
2
GND
C9
DNC
C1
0
VI
N
0
C1
1
VI
N
0
C1
2
GND
D7
GND
G11
SGND
G8
SY
N
C
E7
IN
TV
CC
F9
C
OM
P0B
D8
GND
C8
VOUT
1
M2
VOUT
1
M3
GND
M4
SNU
B1
M5
GND
M6
GND
M7
GND
M8
GND
M9
GND
M10
VIN
1
M11
VOUT
1
L2
VOUT
1
L3
GND
L4
GND
L5
GND
L6
GND
L7
GND
L8
GND
L9
SW1
L10
VIN
1
L11
VOUT
1
K2
VOUT
1
K3
GND
K4
GND
K9
DNC
K1
0
VIN
1
K11
VOUT
1
J2
VOUT
1
J3
GND
J4
VCR
B1
J9
GND
J10
VIN
1
J11
GND
A6
GND
A7
GND
B6
GND
B7
VOU
T0
D1
VOU
T0
D2
VOU
T0
D3
GND
D4
VOSN
S0+
D9
VOR
B0+
D1
0
VI
N
0
D1
1
VI
N
0
D1
2
ISN
S0B-
E1
ISN
S0A-
E2
GND
E3
GPI
O0
E4
VOR
B0-
E1
0
DNC
E1
1
VI
N
0
E1
2
ISN
S0B+
F1
ISN
S0A+
F2
GND
F3
GND
F10
SVI
N
F1
1
SVI
N
F1
2
ISN
S1B-
G1
GND
G3
GND
G10
GND
G12
ISN
S1B+
H1
ISN
S1A+
H2
GND
H3
FS
W
P
H
CFG
H4
VT
R
IM
0C
F
G
H5
VT
R
IM
1C
F
G
H6
SH
AR
E_C
LK
H7
VOSNS1
H9
GND
H10
DNC
H1
1
VIN
1
H12
VIN
1
M12
VOUT
1
M1
VIN
1
L12
VOUT
1
J1
TSN
S1A
J5
COM
P1B
J8
VIN
1
J12
VOUT
1
K1
TSN
D1B
K5
WP
K6
GND
K7
GND
K8
VIN
1
K12
VOUT
1
L1
SD
A
D6
RUN1
F6
SGND
F7
VOU
T1C
F
G
G6
SGND
G7
GND
C6
ASEL
G4
C
OM
P0A
E8
VOSN
S0-
E9
VOU
T0C
F
G
G5
GPI
O1
F4
VD
D
25
J6
COM
P1A
H8
VD
D
33
J7
SGND
F8
GND
C7
V
O
UT
0
R1
2
10K
CO
4
100uF
6.
3V
1210
R3
1
O
PT
0805
SD
A
R1 100
R2
2
100
C7
O
PT
R1
3
10K
SC
L
CI
N1
10uF
25V 1210
C3 O
PT
R1
4
10K
V
OS
1+
R
CI
N2
10uF
25V 1210
VO
S1
+R
R1
9
O
PT
0805
V
O
UT
0
C4 O
PT
R1
5
10K
R2
4
O
PT
C1
0
47uF
0805
6.
3V
V
O
UT
1
O
PT
IO
N
AL
J
U
M
PER
F
O
R
D
U
AL
PH
ASE
S
ING
LE
O
UT
P
UT
CO
NF
IG
URA
TI
O
N
VO
U
T0
R3
5
O
PT
1206
SV
IN
R2
5
O
PT
P3
R1
6
10K
R2
7
O
PT
+
CO
6
330uF
6.
3V
R1
7
10K
R2
8
O
PT
RUN1
RUN0
R4
O
PT
V
IN
2
P1
CO
3
100uF
6.
3V
1210
R3
3
0
R1
8
10K
CO
M
P1
A
CO
M
P0
A
R5
O
PT
R2
3
O
PT
µ
SH
AR
E_
C
LK
RUN1
VO
U
T0
VDD3
3
RUN0
R2 OPT
0805
AL
E
R
TB
J1
VI
N
1
VI
N
2
VI
N
3
VI
N
4
GN
D
5
GN
D
6
GN
D
7
GN
D
8
GN
D
9
GN
D
10
GN
D
11
GN
D
12
GN
D
13
GN
D
14
N
/A
15
N
/A
16
GN
D
17
GN
D
18
VOS1+
19
GN
D
20
VOS1-
21
RUN1
22
VOS2+
23
RUN2
24
VOU
T1
25
VOU
T1
26
VOU
T1
27
VOU
T1
28
VOU
T1
29
VOU
T1
30
VOU
T1
31
VOU
T1
32
VOU
T2
33
VOU
T2
34
VOU
T2
35
VOU
T2
36
VOU
T2
37
VOU
T2
38
VOU
T2
39
VOU
T2
40
V
IN
1
VO
U
T1
R1
0
10K
RUN1
SC
L
VO
U
T0
J2
SD
A
1
GN
D
2
SC
L
3
AU
X3V4
4
VO
SN
S0
-
P4
C5
2200pF
R3
7
10
R7 4.
99k
1%
SD
A
V
IN
1
+
CO
1
330uF
6.
3V
7343
SV
IN
VO
S0
-R
VO
SN
S0
-
GP
IO0
B
C1
2
10uF
25V
RUN0
D1 B0520W
S-
7-
F
GP
IO1
B
R2
9
6.
34k
1%
C1
2200pF
SI
ZE
DAT
E:
IC NO
.
REV
.
SH
EET
OF
TI
TL
E:
AP
PR
O
VAL
S
PC
B D
ES.
APP EN
G.
TE
CHNO
LO
G
Y
Fa
x:
(
408)
434-
0507
M
ilp
ita
s,
C
A
95035
Ph
on
e:
(
408)
432-
1900
1630
M
cC
ar
th
y
Bl
vd
.
LT
C
C
ON
F
ID
EN
TI
A
L -
F
OR
C
U
ST
OM
ER
U
SE ON
LY
CUS
TO
M
ER NO
TI
CE
LI
NE
AR T
ECHNO
LO
GY
HAS
M
ADE
A BE
ST
E
FF
ORT
T
O DE
SI
GN A
CI
RCUI
T T
HAT
M
EE
TS
CUS
TO
M
ER-
SUP
PL
IE
D
SP
ECI
FI
CAT
IO
NS
;
HO
W
EVER
, IT
R
EM
AI
NS T
HE C
UST
OM
ER
'S R
ESPO
NSI
BI
LI
TY
T
O
VE
RI
FY
P
RO
PE
R AND RE
LI
ABL
E O
PE
RAT
IO
N I
N T
HE
ACT
UAL
AP
PL
ICAT
IO
N.
CO
M
PO
NE
NT
S
UBS
TI
TU
TI
ON AND P
RI
NT
ED
CI
RCUI
T BO
ARD
LA
YO
UT
M
AY
S
IG
NI
FI
CANT
LY
AF
FE
CT
CI
RCUI
T
PE
RF
ORM
ANCE
O
R RE
LI
ABI
LI
TY
. CO
NT
ACT
L
INE
AR
TE
CHNO
LO
GY
AP
PL
ICAT
IO
NS
E
NG
INE
ERI
NG
F
OR AS
SI
ST
ANCE
.
TH
IS
CI
RCUI
T
IS
P
RO
PRI
ET
ARY
T
O L
INE
AR T
ECHNO
LO
GY
AND
SCHE
MAT
IC
SUP
PL
IE
D F
OR US
E W
IT
H L
INE
AR T
ECHNO
LO
GY
P
ART
S.
SCAL
E =
NO
NE
w
w
w
.li
near
.c
om
2
D
EM
O
CI
R
CU
IT
2
269A
M
on
da
y,
O
ct
ob
er
13,
2014
1
1
H
IG
H
E
FF
IC
IE
N
CY
,
DC
/DC
S
T
EP
-DO
W
N
,
M
O
DU
LE
N
/A
LT
M
4676E
Y
REG
U
LA
T
O
R
W
IT
H
P
O
W
ER
S
Y
ST
EM
M
AN
AG
EM
EN
T
C
:\P
R
O
JE
C
T
S
\LT
M
4676\
D
E
M
O
B
O
A
R
D
D
C
2269A
\1013\
2269A
-2.
D
S
N
C
O
MP
0A
C1
3
10uF
25V
SY
BC
CI
N4
10uF
25V 1210
