DC2458A - Schematic

5
4
3
2
1
D
D
VIN
5.5V - 42V
VEMI
5.5V - 42V
GND
E10
FB1
L2
MPZ2012S221AT000 0 2010
E1
C11
1µF
50V
0805
E2
C12
0.1µF
50V
C3
4.7µF
50V
1206
C10
4.7µF
50V
1206
C1
22µF
+
63V
SUNCON
63CE22BS
C2
4.7µF
50V
1206
C13
0.1µF
50V
U1
LT8608EMSE
R1
1.00M
9
VIN
BST
1
C4
0.22µF
R6
(Opt)
SYNC
5
E5
VCC
3
JP1
VCC
1
2
3
4
5
6
7
8
SYNC
SPREAD SPECTRUM
C7
1µF
7
4
PULSE SKIPPING
R2
18.2k
(2MHz)
BURST
EN/UV
SW
2
SYNC
VCC
PG
TR/SS
RT
FB
R3
8
49.9k
6
R5
187k
VOUT
5V / 1.5A
VOUT
XFL4020-222MEC
GND
C
10
E6
C9 E3
4.7µF
16V
0805
C6
47µF
10V
1210
R4
C
GND
E4
1.00M
C5
10pF
11
EN/UV
L1
2.2µH
PG
E8
TR/SS
B
GND
E7
C8
0.01µF
B
E9
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
TECHNOLOGY
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
N/A
DATE:
2
2MHz, 1.5A MICROPOWER SYNCHRONOUS
MONOLITHIC STEP-DOWN REGULATOR
IC NO.
REV.
LT8608EMSE
1
DEMO CIRCUIT 2458A
SHEET
Friday, August 28, 2015
1
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OF
1
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