16
Rev. 0
SCHEMATIC DIAGRAM
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
IREF
1.5V
1.2V
1.8V
DY
NAMIC LOAD
CIRC
UIT
5V BIAS
KELVIN CONNECT J7 TO R73
70
H
z,
3%
D
uty C
yc
le
Stuffing options for dynamic load circuit: 1)External Pulse:stuff R213,R210,R59=0, R67=2k; DNP:R88,R158 2)On Board Pulse:stuff R88,R158=0, R67=301, R59= 2.3k; DNP:R210
VO
UT
1
VO
UT
2
VI
N
2
SVI
N
IR
EF
SVI
N
IN
TV
CC
VI
N
2
VDR
EXT
VC
C
VON
VON
STE
P_LE
D
STE
P_LE
D
VLOA
D
DA
TE:
SHEET
OF
TITLE: SCHEM
ATIC
AP
PR
OVA
LS
PCB
D
ES
.
APP
ENG
.
SI
ZE:
SCHEMA
TIC NO. AND
REV
IS
ION:
CU
ST
OM
ER
NOT
ICE
THIS
CIR
CU
IT
IS
P
RO
PRIETARY TO ANA
LOG DEVI
CES
AN
D
SU
PP
LIE
D F
OR
US
E W
ITH
AN
AL
OG
DE
VIC
ES
PA
RT
S.
SKU NO.
IC NO.
AN
ALO
G DEVI
CES HAS MAD
E
A B
ES
T E
FFOR
T TO
DESIGN A
CIR
CU
IT
THA
T ME
ETS
CU
STOMER-SUPPLIE
D
SP
ECIFI
CA
TIONS; HO
WEVER,
IT
REMAIN
S
THE CU
STOMER'S
RESPONSIBILI
TY
TO VE
RIFY
PROPER AN
D R
ELI
AB
LE
OPERA
TION IN THE
AC
TUA
L APPLI
CA
TION.
CO
MPONENT
SUB
STI
TUTION
AN
D PRINTED C
IRC
UIT BOA
RD
LAYOUT
MAY S
IGNIFICAN
TLY
AFFEC
T CIRC
UIT P
ERFOR
MAN
CE
OR
RELI
AB
ILI
TY.
CO
NTA
CT AN
ALO
G DEVI
CES
APPLICATION
S
ENGINEERING
FOR ASSI
STAN
CE.
25
55
AUG
USTI
NE
DRIV
E
ww
w.
analog.
com
ANAL
OG
DE
VICES
AHEAD O
F WHAT'S
P
OS
SI
BLE
TM
SANTA
CLARA, CA 9
50
54
2
3
LT
Y.T
LT
C705
0X /
L
TC388
4RHE-1
HIG
H E
FFICI
ENCY
S
YNCHRO
NOUS
BUCK CO
NVE
RTER
WITH P
SM
DC28
81A(A,B,C)
710-
DC2881A(A,B
,C
)_
REV03
N/
A
Mo
nday
, De
ce
mber
20
, 2
02
1
<V
arian
t N
am
e>
DA
TE:
SHEET
OF
TITLE: SCHEM
ATIC
AP
PR
OVA
LS
PCB
D
ES
.
APP
ENG
.
SI
ZE:
SCHEMA
TIC NO. AND
REV
IS
ION:
CU
ST
OM
ER
NOT
ICE
THIS
CIR
CU
IT
IS
P
RO
PRIETARY TO ANA
LOG DEVI
CES
AN
D
SU
PP
LIE
D F
OR
US
E W
ITH
AN
AL
OG
DE
VIC
ES
PA
RT
S.
SKU NO.
IC NO.
AN
ALO
G DEVI
CES HAS MAD
E
A B
ES
T E
FFOR
T TO
DESIGN A
CIR
CU
IT
THA
T ME
ETS
CU
STOMER-SUPPLIE
D
SP
ECIFI
CA
TIONS; HO
WEVER,
IT
REMAIN
S
THE CU
STOMER'S
RESPONSIBILI
TY
TO VE
RIFY
PROPER AN
D R
ELI
AB
LE
OPERA
TION IN THE
AC
TUA
L APPLI
CA
TION.
CO
MPONENT
SUB
STI
TUTION
AN
D PRINTED C
IRC
UIT BOA
RD
LAYOUT
MAY S
IGNIFICAN
TLY
AFFEC
T CIRC
UIT P
ERFOR
MAN
CE
OR
RELI
AB
ILI
TY.
CO
NTA
CT AN
ALO
G DEVI
CES
APPLICATION
S
ENGINEERING
FOR ASSI
STAN
CE.
25
55
AUG
USTI
NE
DRIV
E
ww
w.
analog.
com
ANAL
OG
DE
VICES
AHEAD O
F WHAT'S
P
OS
SI
BLE
TM
SANTA
CLARA, CA 9
50
54
2
3
LT
Y.T
LT
C705
0X /
L
TC388
4RHE-1
HIG
H E
FFICI
ENCY
S
YNCHRO
NOUS
BUCK CO
NVE
RTER
WITH P
SM
DC28
81A(A,B,C)
710-
DC2881A(A,B
,C
)_
REV03
N/
A
Mo
nday
, De
ce
mber
20
, 2
02
1
<V
arian
t N
am
e>
DA
TE:
SHEET
OF
TITLE: SCHEM
ATIC
AP
PR
OVA
LS
PCB
D
ES
.
APP
ENG
.
SI
ZE:
SCHEMA
TIC NO. AND
REV
IS
ION:
CU
ST
OM
ER
NOT
ICE
THIS
CIR
CU
IT
IS
P
RO
PRIETARY TO ANA
LOG DEVI
CES
AN
D
SU
PP
LIE
D F
OR
US
E W
ITH
AN
AL
OG
DE
VIC
ES
PA
RT
S.
SKU NO.
IC NO.
AN
ALO
G DEVI
CES HAS MAD
E
A B
ES
T E
FFOR
T TO
DESIGN A
CIR
CU
IT
THA
T ME
ETS
CU
STOMER-SUPPLIE
D
SP
ECIFI
CA
TIONS; HO
WEVER,
IT
REMAIN
S
THE CU
STOMER'S
RESPONSIBILI
TY
TO VE
RIFY
PROPER AN
D R
ELI
AB
LE
OPERA
TION IN THE
AC
TUA
L APPLI
CA
TION.
CO
MPONENT
SUB
STI
TUTION
AN
D PRINTED C
IRC
UIT BOA
RD
LAYOUT
MAY S
IGNIFICAN
TLY
AFFEC
T CIRC
UIT P
ERFOR
MAN
CE
OR
RELI
AB
ILI
TY.
CO
NTA
CT AN
ALO
G DEVI
CES
APPLICATION
S
ENGINEERING
FOR ASSI
STAN
CE.
25
55
AUG
USTI
NE
DRIV
E
ww
w.
analog.
com
ANAL
OG
DE
VICES
AHEAD O
F WHAT'S
P
OS
SI
BLE
TM
SANTA
CLARA, CA 9
50
54
2
3
LT
Y.T
LT
C705
0X /
L
TC388
4RHE-1
HIG
H E
FFICI
ENCY
S
YNCHRO
NOUS
BUCK CO
NVE
RTER
WITH P
SM
DC28
81A(A,B,C)
710-
DC2881A(A,B
,C
)_
REV03
N/
A
Mo
nday
, De
ce
mber
20
, 2
02
1
<V
arian
t N
am
e>
C4
8
10
uF
25
V
12
06
R6
0
5k
1
3
2
U9 LT
30
08
ET
S8
IN
5
2
GND
SH
DN
1
OUT
6
AD
J
7
3
GND
4
GND
NC
8
C
227
22
uF
16V
12
10
C
186
2.2
uF
U8
LTC36
46
-M
SE-1
BOOS
T
12
VF
B
2
VON
5
PGOOD
6
SW
11
SVIN
16
EXTV
CC
14
ITH
3
PVIN
10
RT
4
INTVC
C
13
M
ODE
/S
YNC
7
RUN
15
SGND
1
PGND
17
NC
8
PVIN
9
JP
9
ON
OFF
IR
EF
1
3
2
E8
G
ND
C
223
4.7
uF
16V 12
10
C
OU
T39
100
uF
12
10
6.3
V
J7
IO
UT
ST
EP
R
213
0
08
05
Q9
IPD
90
N
03
S4L
-02
2
1
3
C3
9
0.1
uF
C3
4
4.7
uF
16V 12
10
C
188 1uF
08
05
C
19
4
10
uF
25V 12
06
R
211
2k
1%
R6
4
1M
E3
5
BIAS
R5
9
0
R
166
84
.5k
R7
2
10K
R
16
9
61
9k
1%
R6
5
68
1k
1%
C
OU
T24
100
uF
12
10
6.3
V
R
196
O
PT
20
10
R8
4
402
12
06
1%
E4
0
IR
EF
C
192
O
PT
R
210
0
08
05
+
C
OU
T23
470
uF
73
43
2.5
V
R8
3
1.2
4M
1%
E7
EX
T PU
LS
E
R
221
0
D9
O
PT
D
FLS
12
00
C3
1
10
uF
25V 12
10
R
162
60
.4k
U6
LT
18
03
IS5
VO
UT
1
V-
2
+IN
3
-IN
4
V+
5
C
189
4.7
uF
C
OU
T38
100
uF
12
10
6.3
V
R
206
0
08
05
C2
0.1
uF
C
191
5.6
pF
C4
0
10
pF
L4
4.7
uH
XA
L5
03
0-4
72
M
EB
R
160
2
R6
8
3.3
1%
C3
5
4.7
uF
16V 12
10
C
19
0
1u
F
08
05
R
197
0
20
10
+
C
OU
T35
470
uF
73
43
2.5
V
+
C
OU
T36
O
PT
73
43
2.5
V
R6
2
20k
R
20
8
61
9k
1%
+
C
OU
T22
O
PT
73
43
2.5
V
E3
9
EXT
VC
C
R6
6
18k
E3
6
G
ND
C
OU
T25
100
uF
12
10
6.3
V
R8
8 O
PT
08
05
C
224
10
uF
25V 12
10
R8
2
10
1%
R
158
O
PT
08
05
JP
7
ON
OFF
BIAS
1
3
2
JP6
REFI
N
1
2
3
4
5
6
R
167
0
R6
1
15
4k
R
207
93
1K
1%
C4
1
1uF
C4
2
10
pF
C
193
100
pF
R7
3
0.0
1
25
12
R6
7
2k
1%
R
168
1
12
06
R
209
61
9k
R
164
20
0k
U5
3.8
1H
z t
o 1
M
H
z
LT
C
69
92
IS6
-1#
PB
F
MO
D
1
G
ND
2
SET
3
DI
V
4
V+
5
O
UT
6
