DC2049A - Schematic

5
4
3
2
1
D
D
E1
+VIN
10V-15.5V
VIN
J1
C11
C1
10µF
50V
+
R1
1.00M
1%
R2
R3
1.00M
1%
R4
E2
-VIN
VIN
4
143k
1%
R5
86.6k
1%
C
5
R6
9
(Opt)
UVLO
OVLO/DC
ILIM/SS
C3
0.1µF
R7
R8
1
7
RT
SWB
6
2
49.9k
1%
4
C4
180pF
0805
U1
LT3999EMSE
1MHz 12.1k
1%
13.3k
1%
R9
SWA
10
R10
39
0805
C5
4.7µF
25V
1206
5
3
2
6
7
1
8
C7
10uF
50V
1206
C6
(Opt)
1206
T1
750314781
Wurth Elektronik
D1
C8
(Opt)
1206
D2
D4
1
2 IN
IN
3
SHDN
4
PWRGD
6
D3
CMSH1-200HE
C12
U2
LT3065EDD
L1
39µH
Coilcraft
XFL3012-393MEC
3
(Opt)
ADJ
7
C10
10µF
25V
1206
R15
(Opt)
1206
E5
8
C
GND
IMAX GND GND
5
E4 VOUT1
+12V
200mA
9
10
R13
1.00M
1%
REF/BYP
C9
0.01µF
50V
R12
10k
1210
OUT
OUT
0.1µF
25V
R14
52.3k
1%
11
RDC
RBIAS
SYNC
GND
8
11
U3
LT3090EDD
L2
39µH
Coilcraft
XFL3012-393MEC
C13
(Opt)
1206
E3
C14
10uF
50V
1206
C15
(Opt)
1206
1
2 IN
11 IN
IN
OUT
OUT
E6 VOUT2
-12V
200mA
9
10
3
R11
0Ω
6
C17
2200pF
1KV
1206
4
5
C16
10µF
25V
1206 E7
R16
10k
1206
SYNC
B
12V Noise
Monitor
1µF
25V
C2
4.7uF
25V
0805
ILIM
SET
SHDN
7
IMONP
IMONN
GND
B
GND
R17
243k
1%
8
NOTE: UNLESS OTHERWISE SPECIFIED.
1. ALL RESISTORS 0603.
CUSTOMER NOTICE
2. ALL CAPACITORS 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.
A
APPROVALS
TECHNOLOGY
PCB DES.
TITLE: SCHEMATIC
APP ENG.
Low Noise Isolated Power Supply
C:\PADS PROJECTS\2049A(LT3999MS10)\SCH\2049A_REV3.DSN
5
4
3
A
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
1630 McCarthy Blvd.
Milpitas, CA 95035 www.linear.com
Phone: (408)432-1900
Fax: (408)434-0507
IC NO.
N/A
SCALE = NONE
2
MODIFY DATE:
REV.
LT3999EMSE
DC2049A
Nov 13, 2014
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