DC1069A - Schematic

1
2
3
SHDN
PG
LT3500EDD
2 SHDN
SW 12
FB 8
3 SS
TP3
C3
0.47uF
16V
D3
BAT54XV2T1
2
2
D2
OPT
A
L1
IHLP-2525CZ-ER-6R8
VOUT1
6.8uH
1
RUN
4 PG
JP1
U1
D1
B240A
COUT1
47uF
10V
C1
0.22uF
LDRV 10
5 VC
R4
40.2K
(800kHz)
TP5
R14
0
R15
1K
R16
TP9
COUT2
22uF
10V
R7
24.9K
1%
OPT
VIN
GND
TP6
C7
OPT
TP7
VOUT2
[email protected]
GND
R8
8.06K
1%
R11
100K
PG
[email protected]
Q1
ZXTCM322
VOUT2
SYNC
VOUT1
C4
OPT
R10
8.06K
1%
R13 OPT
LFB 9
13 GND
R5
53.6K
1%
PG
C2
330pF
6 RT/SYNC
7
C6
OPT
TP4
R9
42.2K
1%
C5
OPT
2
TP2
R2
100K
1
GND
CIN2
1uF
1
1
OPT
CIN1
22uF
50V
A
R12
BST 11
TP1
D4 OPT
2
1
VIN
VIN 1
VIN
6V-36V
2
TP8
B
B
CUSTOMER NOTICE
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
1
CONTRACT NO.
APPROVALS
DRAWN
DATE
HELEN
2/28/06
Tiger Zhou
2/28/06
CHECKED
APPROVED
ENGINEER
DESIGNER
Thursday, October 04, 2007
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
TITLE
LT3500EDD
Monolithic Step-Down Switching Regulator with LDO
SIZE
CAGE CODE
SCALE:
FILENAME:
2
DWG NO
REV
A
DC1069A
SHEET
1
OF
1
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