DC2004A - Schematic

5
4
3
2
1
REVISION HISTORY
E11
SVIN
ECO
C7
1uF
25V
1206
2.7V - 17V
E8
D
R7
VIN1
2.7V - 17V
CIN1
15uF
35V
7343
C5
10uF
25V
1206
+
0
PGOOD1
14
8
+
RUN1
SW1
16
3.3uH
FB1
C
2
OFF
3
10
R1
619k
1%
RUN2
JP2
SYNC
SYNC
CFF1
22pF
C3
OPT
13
BURST
PULSE-SKIP
MODE/SYNC
1
2
3
4
5
6
4
0
2
3
4
JP7
1.8V
E9
R5
OPT
JP8
2.5V
GND
JP9
USER SELECT
C
INTVCC
NC
15
RPG2
100k
1%
PHASE
1
R3
196k
1%
MODE/SYNC
JP3
180
R2
309k
1%
JP6
1.2V
VOUT1
E2
C1
47uF
1206
R8 0
RSET1
619k
1%
VIN2
5
PHASE
PGOOD2
E6
6
PGOOD2
E7
JP4
VOUT2
ILIM
500mA
1
2
500mA CHAN2 ONLY
3
4
5
6
1A
7
ILIM
SW2
JP5
B
FB2
9
L2
R9
4.7uH
0
RSET2
619k
1%
C2
47uF
1206
CFF2
22pF
1A
C4
OPT
B
11
E3
E10
12
INTVCC
INTVCC
VOUT1
1A
L1
1
ON
D
VIN1
RUN2
CIN2
15uF
35V
7343
HAORAN W.
PGOOD1
JP1
C6
10uF
25V
1206
APPROVED
E4
3
3
OFF
DATE
2-4-14
E5
2
E12
VIN2
2.7V - 17V
1
SVIN
LTC3622EMSE
1
E13
R6
0
0805
2
PROD.
RUN1
ON
GND
U1
DESCRIPTION
2
RPG1
100k
1%
GND
E1
REV
INTVCC
C8
1uF
3.6V
R13
137k
1%
INTVCC
GND
R14
84.5K
1%
R15
OPT
GND
17
JP10
3.3V
NOTE: UNLESS OTHERWISE SPECIFIED
A
1. ALL RESISTORS ARE IN OHMS, 0402.
ALL CAPACITORS ARE IN MICROFARADS, 0402.
CUSTOMER NOTICE
4
JP12
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. HZ
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG. HAORAN W.
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
JP11
5V
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
LTC3622EMSE
DEMO CIRCUIT 2004A
SHEET 1
Friday, July 18, 2014
1
REV.
2
OF 1
A
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