DC1024A - Schematic

5
SHDN
JP1
SHDN
E3
SHDN
5
R3
1M
4
C
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE IN MICROFARADS, 0402.
A
2. INSTALL SHUNT ON JP1 PIN 1 AND 2.
GND
U1
*
E1
VCAP
E4
C2
*
1206
FB 6
GND
E6
VOUT
15V
*
C
GND
B
FOR ASSEMBLY
C2
C3
-A
LT3494EDDB
2.2UF
0.22UF
-B
LT3494AEDDB
4.7UF
0.47UF
CUSTOMER NOTICE
D1
VOUT
OPT
15V @ 17mA
CMDSH-3 15V @ 27mA
CONTRACT NO.
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
4
VOUT
R2
2.05M
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
*
0805
VOUT 7
CTRL
B
NOTES: UNLESS OTHERWISE SPECIFIED
VCAP
C3
SHDN
CTRL
DC1024A
*
CAP 8
2
CTRL
E5
1
U1
SW 1
RUN
C1
4.7UF,6.3V
0603
D
*
2
MURATA
LQH32C
GND
GND
R1
1M
1
D1
L1
15UH
VIN
E7
2
9
VIN
3V - 4.2V
E2
3
VCC 3
D
4
3
APPROVALS
DRAWN:
CHECKED:
APPROVED:
ENGINEER: JESUS R.
DESIGNER:
TECHNOLOGY
KIM T.
TITLE:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
SCHEMATIC
A
MICROPOWER LOW NOISE BOOST CONVERTER WITH OUTPUT DISCONNECT
SIZE
DWG NO.
A
DATE:
DC1024A-1
LT3494EDDB/LT3494AEDDB
Friday, October 27, 2006
SHEET
2
1
REV
A-1
1 OF 1
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