DC397A - Schematic

B
A
REVISION HISTORY
LTC CONFIDENTIAL - For Customer Use Only
L1
2.2uH
LPO1704-222M
VIN
5V
1
VOUT
12V 250mA
1
E2
D1
ZHCS400
3
1
1
C2
2.2uF
16V
SHDN
4
R1
115K
SHDN
C5
1uF
16V
DATE
INITIATED
APPROVED
02/13/01
2
MFR SPECS CONFIG DIAGRAM ERROR : CORRECT INDUCTOR PIN-OUT.
3/26/01
3
ADD R7; CHG L1, L2, L3.
6/6/01
4
CORR L2,L3 MFR#: WAS 92Y-153/5. R MV C5;CHG C4,D2,3; C6 TO C5
01/17/02
5
DEMO BOARD RELEASE
01/30/02
R2
13.3K
2
LT1930A
GND
1
E4
2
C4
2.2uF
16V
C3
10pF
DESCRIPTION
3
FB
GND
E3
U1
5
C1
1uF
16V
SW
2
VIN
ON
JP1
OFF
REV
1
1
E1
ECO
2
BOOST
C7
1uF
25V
L2A
3.3uH
CMD5D13-4371-T004
2
1
VOUT
12V 250mA
1
E6
D2
UPS140
1
VIN
10-16V
1
E5
R7
118K
1
R3
115K
1
U2
4
SHDN
L3A
3.3uH
CMD5D13-4371-T004
2
1
VIN
12V
1
4
L3B
3.3uH
C12
1uF
16V
3
SEPIC
VOUT
-12V 250mA
1
E10
3
L2B
3.3uH
1
4
SHDN
NFB
GND
3
SHDN
E11
U3
1
C15
2.2uF
16V
SW
2 C14
1uF
16V
VIN
ON
JP3
OFF
5
1
E9
C13
1uF
25V
LT1930A
1
R4
13.3K
2
GND
E8
C11
2.2uF
16V
C10
OPT.
3
FB
GND
E7
5
C9
2.2uF
16V
4
SHDN
C8
1uF
16V
SW
3
2
VIN
ON
JP2
OFF
E12
C16
OPT.
C17
2.2uF
16V
C18
2.2uF
16V
C19
1uF
16V
3
R6
13.3K
D3
UPS140
2
LT1931A
GND
1
R5
105K
1
1
INVERTER
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCE ON ANGLE - - 2 PLACES - - - 3 PLACES - - INTERPRET DIM AND TOL
PER ASME Y14.5M -1994
THIRD ANGLE PROJECTION
CONTRACT NO.
APPROVALS
DRAWN L.SANTOS
DATE
02/07/01
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
TITLE
CHECKED
APPROVED
SCHEMATIC, LT1930A/31A, 2.2MHz, SOT-23 DC/DC CONVERTER PCB
ENGINEER
DESIGNER
SIZE CAGE CODE
DWG NO
DO NOT SCALE DRAWING
B
Wednesday, January 30, 2002
SCALE: NONE
REV
DC397A
A
FILENAME: 397A_r5.DSN
A
SHEET
5
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OF
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