DC1764A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
DESCRIPTION
APPROVED
DATE
__
2
PRODUCTION FAB
FRAN H.
05-16-12
D
D
VIN
E1
VOUT
E5
VIN
1.8V - 5.5V
C1
10uF
10V
1206
E2
GND
L1
XAL4030
E3
3 VIN
9 SHDN/
SW 1
CAP 12
VOUT 11
4 PWM/SYNC
6 RT
1
2
3
R2
57.6k
1%
10 GND
C7
1uF
25V
2 PGND
VOUT
12V
500mA
E6
GND
R3
OPT
1%
C
VC 7
VCC
VCC 5
C3
4.7uF
0805
13
JP1
C2
0.1uF
50V
FB 8
GND
RUN
ON
OFF
C6
OPT
1210
U1
LTC3122EDE
RUN
C
R4
1.02M
1%
C4
OPT
0402
4.7uH
C5
22uF
25V
1210
C8
330pF
0402
R6
86.6k
1%
R5
113K
1%
C9
OPT
0402
E4
SYNC
VCC
B
MODE
1
PWM
2
3
BURST
JP2
B
R1
1M
1%
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE 0402 AND CAPACITORS ARE 0603.
2. INSTALL SHUNTS AS SHOWN.
5
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
3
APPROVALS
TECHNOLOGY
PCB DES.
NC
APP ENG.
FRAN H.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
15V, 2.5A SYNCHRONOUS BOOST DC / DC CONVERTER
SIZE
N/A
SCALE = NONE
2
DATE:
IC NO.
REV.
LTC3122EDE
DEMO CIRCUIT 1764A
2
05 - 16 - 12
SHEET 1
1
OF
1
A
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