DC2008A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
__
2
DESCRIPTION
APPROVED
PRODUCTION
Goran P.
DATE
7-31-13
RF
1.0
D
EXTVCC
JP1 VIN
D
CF
0.1uF 16
VIN
50V
Q3
FCX619
SW
E5
15
14
C2
0.47uF
16V
E
CE
0.1uF
PBSS4140DPN
1
225KHz
2
150KHz
C3
0.1uF 16V
E6
6
ITH
SGND
BG
9
10
2
R1
10
VOUT
R4
7
VOSENSE
VPROG
21k 1%
8
R3
E7
-VIN
E8
L1 3.5uH
Q4
PBSS4140DPN
1
7443556350
SW
4
5
GND
1
2
3
INTVCC
CVCC1
4.7uF
10V
PGND
CC2
1nF
11
4
2
SGND
CC1
15nF
5
3
3
CCM
RC1 15k
INTVCC
FCB
5
BURST
2
JP3
FSW
RUN/SS
J2
C
D3
B340A
1
2
3
INTVCC
JP2
MODE
1
1
4
6
3
E4
4
5
VIN
4.5V - 28V
+ CIN7
OPT
35V
RJK0452DPB
4
3
RUN/SS
SYNC
2
2
CMDSH-4E
D2
6.8uF
50V
1812
+VIN
3
C
J1
Q2
2
EXTVCC
1
1
12
Q1
6
2
BOOST
CIN1
CIN2
CIN3
CIN4
CIN5
CIN6
1
1
TK
13
5
C
B
DZ
PDZ6.8B
TG
U1
LTC1625IGN
RZ
4.7k
COUT2
+ COUT3
COUT4
680uF
6.3V
7343
Q5
RJK0453DPB
0
COUT1
+VOUT
J3
VOUT
COUT5
+ COUT6
100uF
10V
VOUT
3.3V / 15A
GND
1812
J4
R5
11.8k
E9
-VOUT
B
B
CUSTOMER NOTICE
A
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.
HZ
Goran P.
TECHNOLOGY
TITLE: SCHEMATIC
LTC1625, SYNCHRONOUS STEP-DOWN REGULATOR
SIZE
N/A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
SCALE = NONE
2
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
DATE:
IC NO.
REV.
LTC1625IGN
DEMO CIRCUIT 2008A
Monday, January 06, 2014
2
SHEET 1
1
OF 1
A
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