DC1647A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
DESCRIPTION
APPROVED
DATE
__
1
PRODUCTION
MOLLY Z.
08-09-10
D
D
U1
LT3686AEDD
VIN
BD
10uF
63V
SANYO
63CE10BS
E3
C3
2.2uF
100V
1210
R2
100K
JP1
ON
OFF
GND
6
1
2
3
4
R4
38.3K
C
7
C4
0.01uF
5
E5
VIN
BOOST
EN/UVLO
SS
SW
10
C1
0.22uF L1
16V
6.8uH
MODE/SYNC
RT
DA
MODE/SYNC
R1
10K
8
FB
GND
R7
61.9K
(1MHz)
9
VOUT
E2
VISHAY
IHLP-2020BZ
1
1
+C2
2
D2
MBRM140T1G
R3
31.6K
C5
OPT
2
E1
VIN
5V - 37V
60V TRANSIENT
C6
22uF
10V
1206
3
VOUT
3.3V / 1.2A
C
E4
GND
R6
10K
11
B
B
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE IN MICROFARADS, 0402.
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
TECHNOLOGY
KT
MOLLY Z.
TITLE: SCHEMATIC
5
4
3
IC NO.
DATE:
REV.
LT3686AEDD
N/A
SCALE = NONE
A
37V, 1.2A BUCK REGULATOR
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
1
DEMO CIRCUIT 1647A
Monday, August 09, 2010
2
SHEET 1
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OF
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