DC441A - Schematic

5
4
3
2
1
E7
PGood
9
Ith
10
SD/RT
2
Rs2
1M
Rset
324K
JP3
3
4.7M
Rfb3
412K, 1%
Rfb2
698K, 1%
JP2
Rfb4
280K, 1%
Opt.
3.3V
E4
GND
OFF ON
E6
RPG RFB1
RSW CFFW
C1 COUT2
RC
CC
GND
COUT1
CIN2
CIN1
L1
U1
C
1.8V
2.5V
E5
GND
B
Cout3
0.1uF
1
7
Rsd
2
E2
Rfb1
887K, 1%
1%
Rfb5
Opt.
R1
10K
SYNC
/MODE
6.3V
Cffw
10pF
Opt.
Cc
1000pF
Burst Mode
C
C1
Opt.
Cout2
1uF
2
PGND
Sy/Mode
Rc
16.2K
1
2
SGND
Cbyp
Opt.
Rsw
Opt.
8
1
Vfb
1
SVin
4
PGood
7
3
JP1
8
0
Rs1
1M
Pulse-skip 3
100K
3
Rfilt
2.2uH
D1
Cout1
22uF
Opt.
6
Cin1
10uF
6.3V
Cin2
1uF
Opt.
Vout
3.3V/2.5V/1.8V
1.25A
Cout4
Opt.
E3
4
SW
5
Cin3
Opt.
PVin
1
6
Rpg
L1
2
Vin E1 VIN
2.65V-5.5V
Cin4
47uF
16V
D
U1
LTC3411EMS
5
D
B
RSET
PCB SILKSCREEN
CONTRACT NO.
APPROVALS
DRAWN
A
June Wu
DATE
6/28/01
TECHNOLOGY
TITLE
ENGINEER Tom Gross
A
LTC3411EMS
CHECKED
APPROVED
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
Buck Regulator: 2.65V-5.5V->1.8V, 2.5V, or [email protected](max)
6/28/01
SIZE CAGE CODE
DESIGNER
DWG NO
REV
A
DEMO DC441A
Monday, March 11, 2002
5
4
3
SCALE:
2
FILENAME:
SHEET
1
1
OF
1
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