DC1980A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
C10
0.01uF
50V
LT3514EUFD
25
24
OPTIONAL CIRCUIT
C5
2.2uF
6.3V
C6
1uF
50V
C19
1uF
50V
C26
1uF
50V
C27
1uF
50V
C20
OPT
50V
C25
OPT
50V
EN/UVLO
3
ON
GND
VOUT4
1
JP1
13
12
L3
4.7uH
NPIM73P4R7MTRF
4
1%
RUN/SS3
DA4
C23
100pF
RUN/SS4
FB4
VOUT3
3.3V / 2A
C
GND
E8
R11
21
1%
L4
4.2uH
CDRH5D28-4R2
7
8
E7
C14
C3
47uF 0.1uF
50V
6.3V
1206
VOUT4
R1
12.7k
1%
MBRM140T3G
C1
22uF
6.3V
0805
C21
330pF
VOUT4
E3
C12
0.1uF
50V
1.8V / 1A
GND
E4
R9
19
1%
B
GND
GND
27
GND
18
GND
10
29
NC
NC
22
NC
RT/SYNC
3
2
1
ON
SW4
GND
E10
VOUT3
R3
31.6k
1%
3
PG
RUN/SS1
VOUT1
5V / 1A
R12
D3
B240A
EN/UVLO
E9
C4
C13
22uF 0.1uF
10V
50V
0805
C24
OPT
20
VIN
14
3
R5
18.2k
1%
(1MHz)
RUN/SS3
JP3
C18
47nF
10V
R4
53.6k
1%
10k
17
RUN/SS4
E14
6
3
1
2
15
ON OFF
RUN/SS4
D4
MBRM140T3G
D1
RUN/SS1
2
1
C17
47nF
10V
5
10k
RUN/SS3
E15
EDWIN L.
D
10k
DA3
23
RUN/SS1
C7
47nF
10V
APPROVED
3-11-13
L1
8.2uH
CDRH5D28-8R2
VIN
SW3
E11
E12
FB1
R6
200K
PG
JP4
RUN/SS3
28
16
ON OFF
B
26
VIN
FB3
JP2
RUN/SS1
R8
100k
1%
11
VIN
R7
475K 1%
2
OFF
PG
C28
OPT
50V
DA1
VIN
NC
E2
SW1
SW5
L5
10uH
9
+
SKY
2
VIN
E1 C8
5.4V - 36V
22uF
50V
VIN
DATE
PRODUCTION
U1
C11
2.2uF
50V
1206
1
D
DESCRIPTION
3
FB1
L6
FERRITE BEAD 8.2uH
VEMI
C
REV
RUN/SS4
OFF
SYNC
SYNC
E13
CUSTOMER NOTICE
A
NOTE: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE 0603.
ALL CAPACITORS ARE 0603.
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.
5
4
3
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
JW
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
EDWIN L.
SIZE
N/A
SCALE = NONE
IC NO.
36V TRIPLE BUCK REGULATOR
WITH INTERNAL SKYHOOK
LT3514EUFD
DEMO CIRCUIT 1980A
DATE: Tuesday, May 14, 2013
2
SHEET 1
1
REV.
3
OF 1
A
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