DC2236A-B - Schematic

A
B
C
D
E
E2
J2
VIN
R1 2.2
C3
2.2uF INTVCC
100V
1812
R3
R5
OPT
OPT
TP2
R13 9.76K
C17 1%
4.7nF C18
47pF
0
R16
499K
1%
C22
10pF
TP3
R20
35.7K
1%
13
0.1uF
VOUT
R15
29
C12
30
12
R14
0
C19
6
33
47pF
31
INTVCC
11
R21
100K
1%
21
27
E1
14
28
INTVCC
20
R25
OPT
C27
1uF
TRACK/SS2
ITH1
U1
BOOST1
[2]
ITH2
BG1
INTVCC
SGND
SGND
TG2
SW2
VFB1
VFB2
BOOST2
PGND
BG2
PGOOD1
SENSE2+
PGOOD2
24
23
SENSE2-
EXTVCC
CLKOUT
PLLIN/MOD
5
2
1
0805 D1 DFLS1100 10V
15
4
R18 0
2
C21
0.1uF
SW2
C6
2.2uF
100V
1812
4
R22 100 1%
E6
C7
2.2uF
100V
1812
Q5
Q6
OPT
4
VOUT
J7
R19
0.003
1%
2010
C23
10uF
50V
1210
C24
10uF
50V
1210
+
C25
150uF
16V
16SVPC150M
2
GND
J8
BSC028N06LS3 G
R24 0
E8
R28
5
FCC
5
PLS SKIP 3
BURST
1
C28
OPT
INTVCC
6
4
2
SYNC
E9
1K 1%
SW1
R29
SW1
SW2
S1
S2
SW2
100K 1%
S1
JP2
E10
3
GND
S2
SER2915L-103KL
18
9
VOUT
J5
C15 [email protected]
150uF
+
16V
16SVPC150M
E7
L2 10uH
MODE
GND
Q8
OPT
4
INTVCC
1
0805 D2 DFLS1100
10
C14
10uF
50V
1210
J6
4
16
17
C11
10uF
50V
1210
Q3
OPT
E5
VIN
INTVCC
Q4
BSC067N06LS3 G
19
2010
5
4
C16 INTVCC C20
0.1uF
4.7uF
R12 0
C26
2.2pF
ILIM
1
2
3
Q2
BSC028N06LS3 G
25
TRACK/SS1
R27
0
EXTVCC
SW1
TP4
VOUT
R26
OPT
4
TG1
RUN2
SW1
26
VOUT
1
2
3
R9
57.6K
1%
SENSE1+
RUN1
32
5
C10
OPT
8
FREQ
L1 10uH
SER2915L-103KL S1
R8
0.003
1%
1
2
3
TP6
SENSE1-
5
3
JP1
PGOOD
7
PHASEMD
4
1
2
3
1%
R10 0
3
2
2
TP1
2
4
1
5
R7 30.1K
R6
1M
0805
1
3
C5
2.2uF
100V
1812
C4
2.2uF
100V
1812
1
2
3
VIN
RUN
OFF
Q7
OPT
VIN
C13 OPT
E4
ON
VIN
Q1
BSC067N06LS3 G
22
J4
R4 100 1%
1
2
3
63HVH56M
4
5
J3
C2
2.2uF
100V
1812
5
GND
+
C29
56uF
63V
C8
2.2pF
1
2
3
C1
56uF
+
63V
63HVH56M
16V UP TO 60V
R2 0
C9
1uF
100V
0805
5
J1
4
1
2
3
VIN
S2
E3
GND
NOTE: UNLESS OTHERWISE SPECIFIED
1
CUSTOMER NOTICE
E11
1. ALL RESISTORS AND CAPACITORS ARE 0603.
[2]
A
VERSION
IC
-A
LTC3890EUH-2
-B
LTC3890EUH
1630 McCarthy Blvd.
Milpitas, CA 95035
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
Phone: (408)432-1900 www.linear.com
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
TECHNOLOGY Fax: (408)434-0507
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES. T^B`\
LTC Confidential-For Customer Use Only
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG. i\Vgbe ^A TITLE: SCHEMATIC
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
POLYPHASE HIGH VOLTAGE STEP-DOWN CONVERTER
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
B
C
N/A
SCALE = NONE
D
DATE:
IC NO.
LTC3890EUH-2/LTC3890EUH
DEMO CIRCUIT 2236A-A/B
SHEET 1
Friday, August 01, 2014
E
REV.
2
OF 1
1
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