DC1687A - Schematic

A
B
C
D
E
REVISION HISTORY
D2
OPT
VCC
SW2
BST1
BST2
10
VIN
14
PVIN
11
PVCC
9
3
C10
4.7uF
50V
1812
C5
PWM
+
C12
1uF
50V
1206
OPT
5
8
C9
4.7uF
6.3V
0603
E4
2
C13
0.1uF
0805
16
4
3
FB
7
VCC
GND
PRODUCTION FAB
J.NOON
4
VC
RUN
C4
33pF
R1
1M
C8
3300pF
C6
47uF
10V
1812
0603
6
1
R3
15k
RUN
C11
10pF
3
C7
1uF
25V
0603
R2
249k
U1
LTC3115EDHD-1
E2
GND
VIN
1
2 RUN
3
R5
C3
OPT
OPT
JP2
1
FIXED FREQ
SYNCH
BURST MODE
2
UNLESS NOTED:
RESISTORS: OHMS, 0402, 1%
CAPACITORS: uF, 0402
R6
1M
RUN
OFF
02-08-12
VOUT
5.0V / 2A
GND
ON
DATE
E1
R4
60.4k
RT
GND
2
VOUT
PWM/SYNC
R7
47.5k
-
12
PVOUT
PGND
D1
PMEG2010EA
VOUT
2.7V - 40V
13
17
VIN
VIN
APPROVED
C2
0.1uF
SW1
E3
DESCRIPTION
OPT
2
15
10uH
C1
0.1uF
REV
B360A
L1
4
ECO
PWM
1
2
3
VCC
PWM
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.
APPROVALS
PCB DES.
NC
APP ENG.
J.NOON
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
40V, 2A BUCK BOOST DC / DC CONVERTER
SIZE
IC NO.
N/A
JP1
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
A
B
C
DATE:
1
REV.
LTC3115EDHD-1
DEMO CIRCUIT 1687A
02-08-12
2
SHEET 1
D
E
OF
1
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