DC275A - Schematic

A
NOTES:
B
C
D
E
UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS AND 1%. ALL TBD RES ARE IN 5%.
2. ALL STARS ARE SGND CONNECTION.
VIN
E10
2
2
VIN
4
4
C4
1
*
E8
BOOST2
BG1
BG2
TG1
TG2
SW1
SW2
R10
TBD
5
6
7
8
24
1UF
23
22
C16
1UF
21
4
Q5
FDS6670A
4
1UH
D4
MBRS320T3
TBD
7
8
C13
TBD
9
1.8V
2.0V
2.5V
R5
10K
R6
40.2K
R7
20K
R16
???
10
1
1.6V
C7
1UF
BURST
2
JP4
11
12
IMAX1
PWRGD1
FCB
RUN/SS1
COMP1
PGND
PWRGD2
FAULT
RUN/SS2
COMP2
SGND
FB2
FB1
VCC
5
6
7
8
19
R11
18
4
Q7
FDS6670A
17
2
4
20
4
1
2
3
Q4
FDS6670A
6
VOUT2+
3.3V 15A
E4
L2
Q6
FDS6670A
1
2
3
BOOST1
C24
IMAX2
5
6
7
8
PVCC
5
6
7
8
8
7
6
5
8
7
6
5
4
VIN
GND
GND
E9
10UF
1
Q3
FDS6670A
TBD
R4
10K
3
5
R2
3
2
1
C12
180UF
C3
330UF
1
4
C11
180UF
C2
330UF
1
2
3
3
2
1
3
2
1
3
3
2
1
C10
180UF
2
4
2
C9
180UF
Q2
FDS6670A
C1
330UF
U1
1
L1
1UH
D3
MBRS320T3
R3
C8
1UF
4
D1
MBR0520LT1
1
2
3
VOUT1+
1 .6V, 1.8V, OR 2.0V @ 15A
E1
Q1
FDS6670A
C6
1UF
8
7
6
5
1UF
C5
1UF
8
7
6
5
C23
R1
10
5%
1
D2
MBR0520LT1
TBD
Q8
FDS6670A
C18
TBD
16
R12
15.8K
C19
180UF
C25
180UF
C26
180UF
C27
180UF
C20
1UF
3
15
C17
1UF
14
GND
E11
R13
4.99K
13
JP1
R8
10K
JP2
JP3
*
2
2
2
* * * *
PWRGD1
E2
VIN
LTC1702CGN
3
1
1
1
CONTINUOUS
VIN
* *
*
R14
10K
*
PWRGD2
E5
FAULT
E6
SD1
E3
SD2
R9
E7
R15
2
2
TBD
C14
TBD
TBD
C15
TBD
C21
TBD
CONFIDENTIAL INFORMATION
APPROVALS
DATE
LINEAR TECHNOLOGY CORP
1
DRAFTER
CHECKER
ENGINEER
ENGR. MGR
PROJ. DIR
THIS DOCUMETNT CONTAINS UNPUBLISHED
INFORMATION WHICH IS PROPRIETARY TO
AND IS THE PROPERTY OF LINEAR TECH. CORP.
AND MAY NOT BE USED , DISCLOSED OR
REPRODUCED WITHOUT THE EXPRESS WRITTEN
PERMISSION OF LINEAR TECH. CORP.
KIM TRAN
1 6 3 0 M c C A R T H Y B L V D . MILPITAS, CA 95035
P H . ( 4 0 8 ) 954-8400 FAX (408) 434-0507
Title
DUAL OUTPUT BUCK REGULATORS
NEXT ASSEMBLY
Size
TRADE SECRET INFO.
ASSY-
B
C
Document Number
Custom
Date:
A
C22
TBD
D
Rev
DC275A-1*LTC1702CGN A
Monday, August 30, 1999
Sheet
E
1
of
1
1
4
3
2
1
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