DC1206A - Schematic

5
4
3
2
1
PGood
E7
10
E5
Rfb3
475K, 1%
Rfb2
332K, 1%
JP3
JP2
1.2V
Opt.
1.8V
1.5V
1
1
OFF ON
E4
E6
GND
GND
B
C1
Rc
Cc
Cout1
U1
C
2
Rfb4
825K, 1%
Cout2
Cin2
B
Cout3
0.1uF
2
Rfb1
412K, 1%
L1
Cin1
GND
3
7
4.7M
2
Rsd
Cffw
47pF
1%
Rfb5
Opt.
Rset
324K
E2
Cout2
47uF
6.3V
Vout
1.2V/1.5V/1.8V
E3
1.8A
Cout4
Opt.
Cc
1000pF
Rs2
1M
R1
10K
Sync/Mode
Rsw
Opt.
C1
Opt.
Cout1
47uF
6.3V
D1
Opt.
4
Burst Mode
Rc
13.0K
SD/RT
Sy/Mode
1
9
Ith
3
C
Vfb
6
1
2
PGood
SVin
8
JP1
Cbyp
Opt.
7
PGND
Rs1
1M
8
4
1
0
100K
SW
SGND
Rfilt
2
Pulse-skip 3
Cin1
22uF
6.3V
L1
1.7uH
PVin
5
Cin2
22uF
6.3V
opt.
6
GND
Cin3
Opt.
Rpg
3
VIN
E1
Cin4
47uF
16V
11
Vin
2.5V-5.5V
D
U1
LTC3568EDD
5
D
Rpg Rfb1
Rsw Cffw
Rset
PCB SILKSCREEN
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
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
CONTRACT NO.
APPROVALS
DRAWN
DATE
J. Wu
1/10/07
T. Gross
1/10/07
CHECKED
TECHNOLOGY
TITLE
LTC3568EDD
1.8A Monolithic Synchronous Buck Regulator
APPROVED
ENGINEER
DESIGNER
Monday, June 18, 2007
2
SIZE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
CAGE CODE
SCALE:
FILENAME:
DWG NO
A
REV
DC1206A
SHEET
1
A
1
OF
1
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