DC2003A - Schematic

5
4
3
2
1
INTVCC
U1
RPG1
100k
1%
LTC3622EDE
E1
D
VIN1
2.7V - 17V
1
CIN1
22uF
35V
7343
C5
10uF
25V
1206
+
SW1
1
13
2
E8
E12
7
CIN2
22uF
35V
7343
+
14
VOUT1
RUN1
RSET1
619k
1%
VIN2
FB1
SYNC
SYNC
INTVCC
BURST
PULSE-SKIP
180
INTVCC
0
2
OFF
3
9
RUN2
1
2
3
4
5
6
JP6
1.2V
VOUT1
SELECT
MODE/SYNC
3
500mA
INTVCC
500mA CHAN 2 ONLY
1A
2
3
4
4
3
4
5
6
JP9
3.3V
R5
OPT
JP10
USER SELECT
E6
PHASE
PGOOD2
SW2
2
JP8
2.5V
R4
137k
1%
RPG2
100k
1%
ILIM
1
JP7
1.8V
R3
196k
1%
INTVCC
PHASE
1
R2
309k
1%
C
6
FB2
L2 4.7uH
8
VOUT2
1A
C4
OPT
E10
B
GND
R11
412k
1%
R12
309k
1%
R13
137k
1%
R14
84.5K
1%
JP11
1.5V
JP12
1.8V
JP13
3.3V
JP14
5V
R15
OPT
15
INTVCC
10
C2
47uF
1206
CFF2
22pF
RSET2
619k
1%
GND
11
C7
1uF
PGOOD2
E7
ILIM
JP5
INTVCC
5
R8
0
E3
3.6V
E9
MODE/SYNC
JP4
INTVCC
CFF1
22pF
GND
R1
619k
1%
JP3
B
1A
C3
OPT
12
JP2
E2
C1
47uF
1206
1
ON
D
E5
L1 3.3uH
R7
0
RUN2
C6
10uF
25V
1206
GND
C
PGOOD1
JP1
E11
VIN2
2.7V - 17V
E4
2
3
OFF
R6
0
0805
PGOOD1
RUN1
ON
GND
VIN1
VOUT2
SELECT
CUSTOMER NOTICE
JP15
USER SELECT
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
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
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
DUAL WIDE VIN SYNCHRONOUS BUCK REGULATOR
WITH ULTRA-LOW QUIESCENT CURRENT
SCALE = NONE
SIZE
IC NO.
N/A
PCB NO.
DATE:
2
LTC3622EDE
DEMO CIRCUIT 2003A
SHEET 1
Thursday, May 15, 2014
1
REV.
2
OF 1
A
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