DC2139A - Schematic

5
D
*
VEMI
5.5V - 42V
GND
E10
FB1
E1
E2
C11
0.1uF
50V
C12
0.1uF
50V
C15
0.1uF
50V
C16
0.1uF
50V
3
SYNC
C
C3
4.7uF
50V
1206
C10
4.7uF
50V
1206
C20
4.7uF
50V
1206
C18
4.7uF
50V
1206
D
+ C1
22uF
63V
SUNCON
63CE22BS
C2
4.7uF
50V
1206
C19
4.7uF
50V
1206
C13
0.1uF
50V
R1
1M
C17
0.1uF
50V
R6
OPT
U1
LT8610AEMSE
5
4
E6
E5
1
3
2
1
SYNC
GND
13
JP1
GND
1
L2
4.7uH
6
EN/UV
2
2
C7
1uF
10V
3
R2
18.2k
(2MHz)
0603
E9
7
8
E7
C8
0.1uF
B
BST
12
C4
0.1uF
10V
VIN
EN/UV
SW
SYNC
SW
INTVCC
SW
TR/SS
BIAS
RT
PG
NC
FB
GND
L1
2.2uH
9
VOUT
E3
XAL5030-222MEC
10
C6
47uF
10V
1210
11
VOUT
5V / 3.5A
C9
1uF
16V
0805
C
GND
E4
14
R3
15
49.9k
R4
16
R5
243k
17
TR/SS
VIN
GND
*
VIN
5.5V - 42V
4
1Meg
C5
4.7pF
CUSTOMER NOTICE
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE 0402.
ALL CAPACITORS ARE 0402.
* REFER TO THE DEMO MANUAL FOR VIN RANGE.
A
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
TECHNOLOGY
B
PG
E8
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
SIZE
N/A
DATE:
2
2MHz, 3.5A MICROPOWER SYNCHRONOUS
MONOLITHIC STEP-DOWN REGULATOR
IC NO.
REV.
LT8610AEMSE
2
DEMO CIRCUIT 2139A
SHEET
Tuesday, May 06, 2014
1
1
OF
1
A
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