DC392A - Schematic

A
B
C
D
E
4
4
2
1
2
C21
0.01uF
1
Dual
Output
2
0
FREQSET
VIN
23
3
STBYMD
BG1
22
4
FCB
EXTVCC
21
5
ITH1
INTVCC
20
6
SGND
PGND
19
7
3.3VOUT
BG2
18
8
ITH2
BOOST2
17
9
VOSENSE2
SW2
15
SENSE2-
TG2
14
RUN/SS2
13
11
SENSE2+
C10
1uF
C17
0.1uF
7
8
+ C4
150uF,6V
SP
2
R8
10
C25
1uF
E3
Vin
D4
MBRM140T3
(Opt.)
C12
10uF
35V
C13
10uF
35V
+ C11
33uF,35V
Sanyo
2
L2
See Table
4
Q2B
FDS6982S
3
5V to 24V
E4
Gnd
2
D3
CMDSH-3
5V @ 4A
E2
Gnd
D1
MBRM140T3
(Opt.)
C7
0.1uF
+ C8
4.7uF
10V
1
E1
Vout1+
1
VOSENSE1
R3
See Table
1
1
3
BOOST1
24
4
D2
CMDSH-3
2
5
6
C5
0.1uF
NC
25
NC
26
SW1
3
Single
Output
R15
0.008
Q2A
FDS6982S
E5
Vout2+
+ C22
180uF,4V
SP
R17
10
R18
10
C23
0.1uF
3
TG1
SENSE1-
2
12
JP8
ITH
29
32
C20
1000pF
R13
63.4K
1%
C19
180pF
0
3
1
JP6
RUN2
1
C14
1000pF
C16
100pF
R14
20K
1%
C18
0.01uF
3
1
2
C15
0.01uF
0
1
R16
1M
R11
4.75K
1%
SENSE1+
L1
See Table
Q1A
FDS6982S
7
8
1
JP5
FCB
C6
1500pF
C9
100pF
1
27
5
6
2
0
3
JP4
STBY
1
R10
8.06K
1%
3
1
JP3
FSET
1
0
31
Q1B
FDS6982S
FLTCPL
10
1
30
U1
See Table
3
2
3
JP2
FLTCPL
1
R12
1M
R7
1M
(Opt.)
2
3
JP1
RUN1
1
2
R9
1M
C3
1000pF
RUN/SS1
NC
R6
20K
1%
28
NC
R4
1M
C1
0.1uF
C2
180pF
R5
105K
1%
2
JP7
VOSENSE
Single
Output
3
16
Dual
Output
1
R1
10
R2
10
C32
1uF
3.3V @ 5A
E6
Gnd
0
E7
2
5V LDO
E8
3.3V LDO
Jumpers Select
Ref.
C24
0.01uF
Short Pin
JP1
1,2
JP2
2,3
JP3
1,2
JP4
1,2
JP5
1,2
JP6
1,2
Table:
1
ASSEMBLY
U1
392A-A
LTC1628EUH
392A-B
LTC3728EUH
IHLP-2525CZ-01-2.2uH
392A-C
LTC3728LUH
IHLP-2525CZ-01-2.2uH
L1
CDEP105-4R3MC-88
L2
Jumpers Select
R3
0.008 ohm
Ref.
IHLP-2525CZ-01-2.2uH
0.006 ohm
IHLP-2525CZ-01-2.2uH
0.006 ohm
CDEP105-4R3MC-88
LINEAR TECHNOLOGY CORPORATION
Single Output
Dual Output
JP7
Short Pin 2,3
Short Pin 1,2
JP8
Short Pin 2,3
Short Pin 1,2
Title
Size
High Efficiency Dual Regulator
Document Number
DEMO 392A-A,B,C
Date: Wednesday, July 10, 2002
A
B
C
D
1
1630 McCARTHY BLVD.
MILPITAS, CA 95035
(408) 432-1900
(408) 434-0507 FAX
Rev
LTC1628EUH or LTC3728EUH
Sheet
E
1
of
1
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