DC1215A - Schematic

R12
(opt)
C1
2.2uF
10V
D1
CMDSH-3
E1
CLKOUT
E3
VIN
CLKIN
4 PHASE
1 RT
JP5
R9
150K
+ C10
*
22uF
25V
GND
C5
47uF
6.3V
1206
C12
47uF
6.3V
1206
E7
C11
47uF
6.3V
opt.
25 PGND
R2
10.0K
VOUT
2.5V / 3.3V / [email protected]
GND
E9
R4
3.16K
R5
2.21K
R6
1.37K
R7
OPT.
JP7
2
3
12 SW
C7
10pF
11 SW
C6
220pF
10 PGND
RUN
14K
C9
0.1uF
25V
7
E8
C8
100pF
SW 13
VOUT
6 ITH
TRACK
SW 14
EXPOSED PAD
9
5 TRACK
PGOOD
DCM (DISCONTINUOUS MODE)
8
4
VIN
1
1uH
3
C14
22uF
25V
opt.
VIN
4V to 14V
PVIN 17
L1
4 FB
C13
22uF
25V
opt.
E2
E4
SW 15
FCM (FORCED CONTINUOUS MODE)
C3
22uF
16V
C4
0.1uF
25V
SW 16
2
R3
C2
22uF
16V
3 MODE
1
JP6
OFF
PVIN 18
2 PHMODE
MODE
ON
C15
0.1uF
25V
SVIN 19
6
5
R1
162K
BOOST 20
3 PHASE
INTVCC 21
4
SGND 22
2 PHASE
3
CLKOUT 23
U1
LTC3605EUF
PHMODE
1
2
CLKIN 24
R11 10
RUN
R10
100K
1%
R8
100K
R13
JP1
JP2
JP3
JP4
0
2.5V
3.3V
5V
OPT.
PGOOD
E5
GND
E6
*
C10 IS AN OPTIONAL CAPACITOR. IT IS INSERTED
ON THE DC1215A TO DAMPEN THE (POSSIBLE)
RINGING VOLTAGE DUE TO THE LONG INPUT LEADS.
ON A NORMAL, TYPICAL PCB, WITH SHORT TRACES,
THE CAPACITOR IS NOT NEEDED.
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
CONTRACT NO.
APPROVALS
DRAWN
DATE
J. Wu
1/30/07
T. Gross
1/31/07
TECHNOLOGY
TITLE
LTC3605EUF
5A Monolithic Synchronous Buck Regulator
ENGINEER
CHECKED
SIZE
CAGE CODE
APPROVED
Tuesday, December 09, 2008
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
DWG NO
REV
DC1215A
SCALE:
FILENAME:
SHEET
1
A
OF
1
Similar pages