Analog Devices Linear DC2543B, Демонстрационное руководство

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9
DEMO MANUAL DC2543B
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications
subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
SCHEMATIC DIAGRAM
5 5
4 4
3 3
2 2
1 1
D
D
C
C
B
B
A
A
2%
DUT
Y CYCL
E
MA
X.
DO
NOT
EXCEED
DY
NAMIC LOAD CIRCUIT
7V BIAS
VOUT
VIN
EXTVCC
+7V
SIZ
E
DATE
:
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SHEET
OF
TI
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www.linear.c
om
1
Monday, March 26, 2018
22
HIGH EFFICIENCY,CHARGE PUMP DC/DC CONVERTER
HZ
JL
N/A
LTC7820EUFD DEMO CIRCUIT 2543B
SIZ
E
DATE
:
IC
N
O.
RE
V.
SHEET
OF
TI
TLE
:
APPROVALS
PC
B D
ES
.
APP ENG
.
TE
C
H
N
O
LO
G
Y
Fax: (408
)434-0507
M
ilpitas, CA 95035
Phone:
(408)
432-
19
00
1630 McCar
th
y
Blvd.
LT
C C
on
fid
en
tia
l-F
or
C
us
to
m
er
U
se
O
nl
y
CUSTOMER NOTICE
LI
NEAR
TE
CHNOL
OGY
HAS
MADE
A BEST
EF
FO
RT
T
O DESIGN A
CIRCUIT
T
HAT
M
EET
S
CUST
OM
ER-
SUPPL
IED
SPECIF
ICAT
IONS;
HO
W
EV
ER
, I
T
REM
AI
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C
US
TO
M
ER
'S
R
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PO
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ION
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MAY SIGNIF
ICANT
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AF
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CIRCUIT
PERF
ORMANCE OR REL
IABIL
IT
Y. CONT
ACT
L
INEAR
TE
CHNOL
OGY APPL
ICAT
IONS ENGINEERING F
OR
ASSIST
ANCE.
THIS CIRCUIT
IS PROPRIET
ARY T
O L
INEAR T
ECHNOL
OGY
AND
SCHEMAT
IC
SUPPL
IED F
OR USE WIT
H L
IN
EAR
TE
CHNOL
OGY
PART
S.
SC
AL
E =
N
ON
E
www.linear.c
om
1
Monday, March 26, 2018
22
HIGH EFFICIENCY,CHARGE PUMP DC/DC CONVERTER
HZ
JL
N/A
LTC7820EUFD DEMO CIRCUIT 2543B
SIZ
E
DATE
:
IC
N
O.
RE
V.
SHEET
OF
TI
TLE
:
APPROVALS
PC
B D
ES
.
APP ENG
.
TE
C
H
N
O
LO
G
Y
Fax: (408
)434-0507
M
ilpitas, CA 95035
Phone:
(408)
432-
19
00
1630 McCar
th
y
Blvd.
LT
C C
on
fid
en
tia
l-F
or
C
us
to
m
er
U
se
O
nl
y
CUSTOMER NOTICE
LI
NEAR
TE
CHNOL
OGY
HAS
MADE
A BEST
EF
FO
RT
T
O DESIGN A
CIRCUIT
T
HAT
M
EET
S
CUST
OM
ER-
SUPPL
IED
SPECIF
ICAT
IONS;
HO
W
EV
ER
, I
T
REM
AI
NS T
HE
C
US
TO
M
ER
'S
R
ES
PO
NS
IB
IL
IT
Y T
O
VERIF
Y PROPER AND REL
IABL
E OPERAT
ION
IN
TH
E
ACT
UAL
AP
PL
IC
AT
IO
N.
C
OM
PO
NE
NT
S
UB
ST
IT
UT
IO
N
AN
D
PR
IN
TE
D
CIRCUIT
BOARD
LAYOUT
MAY SIGNIF
ICANT
LY
AF
FE
CT
CIRCUIT
PERF
ORMANCE OR REL
IABIL
IT
Y. CONT
ACT
L
INEAR
TE
CHNOL
OGY APPL
ICAT
IONS ENGINEERING F
OR
ASSIST
ANCE.
THIS CIRCUIT
IS PROPRIET
ARY T
O L
INEAR T
ECHNOL
OGY
AND
SCHEMAT
IC
SUPPL
IED F
OR USE WIT
H L
IN
EAR
TE
CHNOL
OGY
PART
S.
SC
AL
E =
N
ON
E
www.linear.c
om
1
Monday, March 26, 2018
22
HIGH EFFICIENCY,CHARGE PUMP DC/DC CONVERTER
HZ
JL
N/A
LTC7820EUFD DEMO CIRCUIT 2543B
R30 1 1% 2010
Q23
SUD50N04
1
2 3
R27 20K
R29 80.6k 1%
C52 22uF 25V
1210
U2
LTC3630AEMSE
SW
1
VIN
3
FBO
12
VPRG1
7
VPRG2
6
GND
8
VFB
9
SS
10
ISET
11
GND
14
RUN
5
GND
16
GND
17
E15
GND
L2 68uH
LPS6225-683MRB
R28 10k
1%
C49 2.2uF 1210 100V
C53 22uF 25V
1210
C55 470pF
R24 0
VOUT
J5
C54
47nF
C50 1uF
C47 2.2uF 1210 100V
JP2
ON
OFF
BIAS
1 3 2
IOSTEP
J6
E14
IO_CLK
R26 154K 1%
C51 OPT
Q9
SUD50N04
1
2 3