DC2354A - Schematic

A
B
C
D
E
REVISION HISTORY
ECO
REV
-
3.2
R1
100k
R29
4
196k
1%
PROD. P/L Change
DATE
APPROVED
03/30/16
i ^
VOUT1
2 -5.0V
3
1% 5
4 -3.3V
R30
DESCRIPTION
4
6 USER SEL
JP3
OPT
INTVCC
VOUTR10
200k
1%
RTH
511
1%
INTVCC
R27 OPT
0.1uF
17
18
15
MODE
E7
R3
EXT_SYNC
0
E2
VIN
FCC 1
2
EXT 3
BURST 5
4
8
C3
OPT
6
11
12
JP1
GND
R19 OPT
E1
1
R18
1M
1%
0805
EXT I/O
2
RUN
ON 1
4
OFF 5
6
JP2
VLOGIC
3
2
EXT I/O 3
E13
4
R2
10M
1%
5
C4
OPT
R31 20 1% 9
R32 16
100 1%
R13
100k
E9
2
10
ISET
INTVCC
ITH
VINREG
RT
VIN
MODE/SYNC
VIN
RUN
SW
PGOOD
SW
PGDFB
SW
VOUT-
SW
VOUT-
SW
VOUT-
SW
VOUT-
SW
VOUT-
BOOST
GND
VOUTSNS
R25
EXTVCC
VOUT-
20
VOUT-
14
7
VIN
E3
6
CIN4
1uF
0805
100V
28
27
26
CIN1
2.2uF
100V
1210
+ CIN5
OPT
CIN2
10uF
63V
1210
10uF
63V
24
VOUT-
22
COILCRAFT
XAL5050-562MEB
C6 0.1uF
21
E5
19
13
C5
1uF
25V
R5
10
1%
GND
COUT1
22uF
25V
1210
COUT2
22uF
25V
1210
COUT3
+ 150uF
16V
7343
E6
VOUT-5V / 4A MAX
VOUT-
E14
VOUT-
CUSTOMER NOTICE
1. ALL CAPACITORS AND RESISTORS ARE 0603.
2. ALL RESISTORS ARE 5%.
TECHNOLOGY
`\
i^
EXTVCC
A
B
C
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
HIGH VOLTAGE, NEGATIVE OUTPUT MONOLITHIC
SYNCHRONOUS REGULATOR
N/A
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900www.linear.com
Fax: (408)434-0507
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
2
E15
R33 OPT
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
NOTES: UNLESS OTHERWISE SPECIFIED,
E4
GND
L1
5.6uH
23
VOUT-
GND
3
25
R26
1M
1%
E12
VIN
3.5V - 55V
+ CIN3
137k 1%
PGOOD
1
CVCC
2.2uF
0805
16V
R4
0
29
3
U1
LTC7149EFE
C1
CTHP
220pF
C0G
SVOUT-
VOUT-
CTH
10nF
X7R
DATE:
D
IC NO.
REV.
LTC7149EFE
DEMO CIRCUIT 2354A
Wednesday, March 30, 2016
3.2
SHEET 1
E
OF 1
1
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