DC1212A - Schematic

1
2
3
4
D1
DFLS240L-7
2
A
5
6
7
8
L1
10uH
1
A
U1
See Table
VIN
6.3V-38V
60V Transient
GND
E1
E2
C11
0.1uF
50V
C9
0.1uF
50V
L2
2.2uH
C10
4.7uF
50V
+
C2
22uF
63V
C3
2.2uF
50V
BD
2
exposed pad,
solder side
RT
10
BOOST
VC
9
3
SW
FB
8
4
VIN
PGOOD
7
5
RUN/SS
SYNC
6
R2
110k 1%
R3
590k
1%
R4
100k
11
B
FB1
Bead
1
GND
C1
0.47uF
R1
40.2k 1%
JP1
SHDN
EXTSS
EXTSS
C4
22uF
10V
C5
0.1uF
50V
C7
0.1uF
50V
C8
100pF
VOUT
5V/2A
E5
C12
0.1uF
50V
R5
20k
R6
100k
1
2
3
4
RUN
FB2
Bead
GND
E6
C6
680pF
B
PGOOD
E7
SYNC
E3
E4
C
C
Table
Customer Notice
D
2
U1
DC1212A-A
LT3480EDD
DC1212A-B
LT3685EDD
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
FB1,FB2 = Taiyo Yuden FBMJ3216HS800T
1
ASSEMBLY
3
LINEAR TECHNOLOGY CORPORATION
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.
4
5
1630 McCARTHY BLVD.
MILPITAS, CA. 95035
PHONE (408) 432-1900 FAX (408) 434-0507
Title
2A, 38V Step-Down Switching Regulator
D
with SYNC Function and EMC Filters
Size
A
Document Number
Date:
Monday, January 15, 2007
6
Rev
A
Demo Circuit 1212A-A/B
7
Sheet
1
of
8
1
Similar pages