DC1854A - Schematic

5
4
3
2
1
E1
E13
OV/UV
14
D3
(Opt)
SOD-123
13
L3
C6
1µF
50V
1206
15µH
744025150
R9
100k
4
17
8
R11
(Opt)
E11
L2
10µH
74437324100
1
18
VIN2
FB2
OV/UV
16
2
*See Demo Manual
C12
(Opt)
1210
E7
R4
316k
1%
C9
47µF
10V
1210
C22
(Opt)
0603
C17
47µF
10V
1210
C18
(Opt)
1210
C19
(Opt)
1210
VOUT2
- 5V
-800mA
*
E8
GND
R5
59.0k
1%
E3
L1
6.8µH
74437324068
D1
DFLS240L-7
PG1
R2
316k
1%
C10
47µF
10V
1210
C21
(Opt)
0603
C14
47µF
10V
1210
C15
(Opt)
1210
FB1
SS1
15
E12
VOUT1
+5V
1.4A
*
C16
(Opt)
1210
E6
PG2
C7
0.1µF
0603
SS1
B
19
C11
(Opt)
1210
D2
VS-10MQ060NTRPBF
C3
SS2
R12
(Opt)
U1
LT8471EFE
E1
E5
PG2
E2
R7
(Opt)
E4
PG1
C4
2.2µF
50V
1206
C
6
R8
100k
SHOUT
SYNC
R6
499k
1%
VIN1
C5
2.2µF
50V
1206
2.2µF
50V
1206
C2
0.47µF
50V
1206
3
C1
0.47µF
50V
1206
20
GND
C
D
C3
C20
(Opt)
1206
C2
E2
C13
47µF
35V
C1
+
GND
5
R3
59.0k
1%
7
RT
10
11 GND
12 GND
21 GND
GND
VIN
6V to 32V
9
D
E10
SGND
B
SS2
C8
0.1µF
0603
E9
SYNC
R10
0 Ohm
R1
187k
1%
450kHz
CUSTOMER NOTICE
A
NOTE: UNLESS OTHERWISE SPECIFIED.
ALL RESISTORS 0603.
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.
APPROVALS
APP ENG.
5
4
3
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
TITLE: SCHEMATIC
SIZE
C:\PADS PROJECTS\1854A(LT8471)\SCH\1854A_REV2.DSN
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
TECHNOLOGY
PCB DES.
IC NO.
N/A
SCALE = NONE
1630 McCarthy Blvd.
Milpitas, CA 95035 www.linear.com
Phone: (408)432-1900
Fax: (408)434-0507
DUAL OUTPUT BUCK AND
INVERTING CONVERTER
LT8471EFE
REV.
DC1854A
MODIFY DATE: Feb 18, 2014
2
SHEET
1
2
1
OF
1
A
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