DC1200A - Schematic

VIN
GND
SHDN
SYNC
GND
OPT
E2
E3
C3
4.7uF
100V
2220
3
15
SYNC
14
7
13
E7
2
D2
MMSD914T1
1
2
BOOST
1
2
D4
OPT
1
1
SOD123
SHDN
E4
D3
OPT
2
+ C7
D
3
1
8
4
6
BOOST
VIN VIN
SW 2
SW 5
SHDN
SYNC
C4
1.5uF
10V
U1
LT3430EFE-1
D
L1
68uH
1
SW
NC
NC
GND
R2
20.5k
1%
FB
FB 12
GND
C5
D1
30BQ060
SMC
BIAS 10
R4
OPT
E5
VOUT
2
UP4B-680
1
VIN
5.5V - 60V
E1
4
+ 100uF
6.3V
6032
C10
+ 100uF
6.3V
6032
C9
OPT
VOUT
[email protected]
C6
OPT
0805
2
5
C8
OPT
E6
GND
GND GND GND VC
16
17
11
R1
3.3k
C
R3
12.1k
1%
VC
C1
220pF
C2
0.022uF
R6
OPT
3
9
2
C
1
Q1
OPT
R5
OPT
NOTE: UNLESS OTHERWISE SPECIFIED
B
1. ALL RESISTORS ARE IN OHMS, 0603.
ALL CAPACITORS ARE IN MICROFARADS, 0603.
2. FOR ALL OPTIONAL COMPONENTS ON BOARDS:
Q1, R5, R6, C9: SHOW OUTLINE AND REFERENCE DESIGNATORS.
D3, D4: NO OUTLINE, SHOW REFERENCE DESIGNATORS.
C6, C7, C8, R4: NO OUTLINE, NO REFERENCE DESIGNATORS.
B
CUSTOMER NOTICE
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
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
APPROVALS
DRAWN:
CHECKED:
APPROVED:
ENGINEER: KEITH S.
DESIGNER:
TECHNOLOGY
KIM T.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
A
2A 100kHz HIGH VOLTAGE BUCK CONVERTER
SIZE
DWG NO.
DATE:
Thursday, February 08, 2007
A
2
DC1200A * LT3430EFE-1
SHEET 1
1
REV
A
OF 1
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