DC621A - Schematic

5
4
3
2
ECO
REV
DESCRIPTION
DATE
PROTO
4
D
APPROVED
02/23/04
D
VIN
TP3
TP4
PGOOD1
TP5
C13
0.1uF
VOUT1
VOUT1
TP1
1.8V @2.4A
GND
25
Pgood3
21
Pgood1
12Good
16
5
BOOST1
Pgood2
9
0.22uF
R8
13.7k
1%
33uF
6.3V
5Good
6
BOOST2
D3
SW1
4
SW1
SW2
TP9
R6 2.2k C1
R7
7.32k
1%
3300pF
8
FB1
7
Vc1
12
TP14
C2
23
11
Vc2
10
RUN/SS2
13
L3 22uH
B
VOUT3
TP12
-12V
[email protected]
[email protected]
L4 22uH
C12
10uF
16V
C11
1uF
35V
R10
133k
1%
D5
B130
27
SW3
19
NFb
BIAS1
15
BIAS2
28
VC3
18
TP7
D2
R9
13.7k
1%
RUN/SS3
20
GND
TP11
D4
UPS120
0.22uF
TP2
VOUT2
R14 10.7k 1%
C10
R13
2.49k
1%
C
3.3V @1.4A
22uF
6.3V
GND
TP10
RUN/SS2
1500pF
TP15
R15 0
C3
22nF
R11 1.5k
VIN
R16
B
OPT
RUN/SS3
14
TP16
C4
FB3
12GOOD
PGOOD2
VOUT2
L1 3.3uH
C6 1000pF R12 10k
PGOOD3
1500pF
26
TP13
CMDSH-3
C14 15pF
GND
VIN
RUN/SS1
1500pF
R3
100k
TP6
C5
RUN/SS1
R2
130k
C7
FB2
B220A
VOUT2
24
LT1941EFE
3
VIN
R1
100k
17
C8
L2 3.0uH
C9
U1
VIN3
5GOOD
R4
100k
2
R5
100k
CMDSH-3
VIN2
D1
VOUT2
22
VOUT1
VIN1
TP8
GND
CIN2
4.7uF
16V
1
CIN1
10uF
16V
4.7V to 14V
VIN0
VIN
C
1
REVISION HISTORY
This circuit is proprietary to Linear Technology and supplied
for use with Linear Technology parts.
Customer Notice:Linear Technology has made a best effort to
design a circuit that meets customer-supplied specifications;
however, it remains the customers 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
Applications Engineering for assistance.
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCE ON ANGLE - - 2 PLACES - - - 3 PLACES - - INTERPRET DIM AND TOL
PER ASME Y14.5M -1994
A
THIRD ANGLE PROJECTION
CONTRACT NO.
APPROVALS
DRAWN MEI
DATE
10/24/02
CHECKED
TECHNOLOGY
TITLE
DC/DC CONVERTER
ENGINEER
SIZE CAGE CODE
Custom
DO NOT SCALE DRAWING
5
4
3
Monday, April 19, 2004
A
SCH, LT1941EFE 1.1MHz TRIPLE OUTPUT
APPROVED
DESIGNER
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
SCALE:NONE
2
DWG NO
REV
4
DC621A
FILENAME: 621A-4.DSN
SHEET
1
1
OF
1
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