DC1992A - Schematic

5
4
VIN
5.5V - 65V
GND
FB1
E1
C11
0.1uF
100V
E2
EN/UV
SYNC
C12
0.1uF
100V
C3
4.7uF
100V
1210
L2
4.7uH
C10
4.7uF
100V
1210
+ C1
10uF
100V
SUNCON
100CE10BS
C2
2.2uF
100V
1206
C13
0.1uF
100V
0402
U1
LT8620EMSE
R1
1M
5
R6
OPT
1
3
2
1
SYNC
GND
13
JP1
GND
6
4
C
1
D
E6
E5
2
2
C7
1uF
0402
6.3V
3
R2
18.2k
(2MHz)
E9
7
8
E7
BST
12
C4
0.1uF
16V
0402
VIN
EN/UV
SW
SYNC
SW
INTVCC
SW
TR/SS
BIAS
RT
PG
NC
FB
GND
9
L1
2.2uH
C8
0.1uF
VOUT
10
C6
47uF
10V
1210
11
VOUT
5V / 2A
E3
XFL4020-222MEC
C9
1uF
16V
0805
C
GND
E4
14
R3
15
R4
16
R5
243k
49.9k
1Meg
C5
17
TR/SS
VIN
GND
D
3
10pF
PG
E8
B
B
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE 0603.
ALL CAPACITORS ARE 0603.
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.
A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
TECHNOLOGY
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
A
65V, 2A MICROPOWER SYNCHRONOUS
MONOLITHIC STEP-DOWN REGULATOR
SIZE
N/A
DATE:
2
IC NO.
REV.
LT8620EMSE
DEMO CIRCUIT 1992A
2
SHEET
Wednesday, April 02, 2014
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