DC1893A - Schematic

5
4
3
2
1
VSYS
R1
100k
0603
VIN
E1
C15
0.1µF
50V
C16
0.1µF
50V
FB1
C7
4.7uF
50V
1206
C8
4.7µF
50V
1206
+
C1
22µF
63V
SUNCON
63CE22BS
C2
4.7µF
50V
1206
C17
0.1µF
50V
R2
100K
1
VIN
2
R8
E11
SYNC
R22
100k
C18
330pF
0603
R6
RCBL
100k
R7
14.7k
0603
ISP
RLIM
ISN
SYS
6
16
VOUT
R3
NRS8040T100MJGJV C4
47µF
10V
D2
MBRA340T3G 1210
0.022
1206
C9
OPT
10V
1206
C25
OPT
1210
VCABLE
R4
E16
+ C26
120uF
16V
11
USB5V
VCABLE
E15
0.3 2W
0830
GND
C-GND
R13
E14 OPT 1206 E17
SUNCON
16HVP120M
E5
10
13
C13
C12
1µF
25V
0805
10nF
R9
12
VCABLE
5V / 2.4A
C11 E3
1µF
25V
0805
RT
R10
174k
0603
R12
7.5k
0603
C3
1µF
16V
L1
0805 10uH
15
E7
C_GND
VOUT
5.xV / 2.4A
C
E9
GND
10k
R14
OPT
17
GND
E8
C19
1nF
0603
SW
VC
8
R25
OPT
0603
SW
D
14
RCBL
7
E4
BST
SYNC
9
C
U1
LT3697EMSE
EN
5
EN
E6
VSYS
C10
5.xV / 0.1A
0.1µF E13
25V
0603
GND
E12
VIN
3
OPT
GND
VSYS
E10
GND
E2
D1
CMDSH-3
4
VIN
8V - 35V
FLT
FLT
L2
22µH
NR8040T220M
D
X4
OPEN SET
3
1
VCABLE
VSYS
1
3
Q1
ZXMN3A14F
1
B
X1
OPEN D+
3
1
J3
DATA+
OPEN
C14
2.2nF
0603
R21
2
1206
1. ALL RESISTORS ARE 0402.
ALL CAPACITORS ARE 0402.
R24
2
1206
R18
49.9k
0603
R17
49.9k
0603
2
SHORT
3
1
1
2 1
3 2
4 3
4
USB
X3
1
10k
0603
R15
43.2k
0603
2
DIV
5 R19
R16
43.2k
0603
2
1
V+
OUT
GND
SET
4
3
2
NOTES: UNLESS OTHERWISE SPECIFIED
U2
LTC6900CS5
3
V+
B
R20
2M
0603
VCABLE
2
R5
R23
18
18
2512 2512
2
3
X5
OPEN
2
DATA-
OPEN DX2
CUSTOMER NOTICE
A
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.
5
4
3
2
TECHNOLOGY
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
TITLE: SCHEMATIC
USB 35V, 2.5A BUCK
WITH CABLE DROP COMPENSATION
SIZE
N/A
DATE:
IC NO.
REV.
LT3697EMSE
DEMO CIRCUIT 1893A
3
SHEET
Monday, September 08, 2014
1
1
OF
1
A
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