DC958A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
>
DESCRIPTION
A
DATE
PROTOTYPE
APPROVED
08/24/05
L1
4.7uH
CDRH4D22/HP-4R7
D
D
VOUT1
TP1
D1
[1]
R1
52.3K
D2 NSR0230M2T5G
CFF1
OPT
C1
22uF
10V
C2
0.1uF
R2
TP9
10K
VOUT1
5V @ 1.6A
GND
R3
100K
C3
OPT
U1
VIN
6.8V to 25V
VIN
TP4
CIN1
4.7uF
X7R
25V
C6
0.1uF
C7
OPT
D4
DFLS230L
GND
C9
0.1uF
1
BOOST1
FB1
16
2
SW1
Vc1
15
3
VIN1
PG1
14
PG1A
4
VIN1
Run/SS1
13
RUN/SS1A
5
VIN2
Run/SS2
12
RUN/SS2A
6
VIN2
PG2
11
PG2A
Vc2
10
FB2
9
7
SW2
8
BOOST2
D5
[1]
TP8
GND
C
C5
0.1uF
C4
220pF
C8
220pF
R5
28K
C12
OPT
R8
31.6K
B
D7
[1]
C
TP3
TP5
TP6
TP7
VOUT1
D6
R4
39K
C10
C11
0.1uF
0.1uF
NSR0230M2T5G
CFF2
OPT
R6
100K
TP2
C13
22uF
10V
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
PG2
3
GND
VOUT2
TP10
CUSTOMER NOTICE
[1] DO NOT STUFF.
Run/SS2
B
L2
3.5uH
CDRH4D22/HP-3R5
NOTES: UNLESS OTHERWISE SPECIFIED,
Run/SS1
R7
10K
VOUT2
A
PG1
17
D3
DFLS230L
LT3506AEDHD
3.3V @ 1.6A
C14
0.1uF
CONTRACT NO.
APPROVALS
DATE
DRAWN AntoninaKarpova
4/26/06
CHECKED
TECHNOLOGY
TITLE
A
LT3506AEDHD
1.1MHz DUAL MONOLITHIC 1.6A STEP- DOWN REGULATOR
APPROVED
ENGINEER Walker Bai
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
4/26/06
DESIGNER
Monday, August 07, 2006
SIZE
CAGE CODE
SCALE:
2
FILENAME:
DWG NO
REV
DC958A
DC958A.DSN
A
SHEET
1
1
OF
2
5
4
3
2
1
L3
4.7uH
D53LC, type A
VOUT3
TP11
D
R9
12.4K
D8
NSR0230M2T5G
C15
22uF
6.3V
CFF3
OPT
D9
[1]
R10
10K
C17
OPT
R11
100K
C21
OPT
D11
DFLS230L
C23
0.1uF
D12
[1]
GND
BOOST1
FB1
16
2
SW1
Vc1
15
3
VIN1
PG1
14
PG1
RUN/SS1
4
VIN1
Run/SS1
13
5
VIN2
Run/SS2
12
6
VIN2
PG2
7
SW2
8
BOOST2
GND
CIN2
4.7uF
X7R
25V
C20 0.1uF
1
C18
470pF
TP15
11
PG2
TP16
Vc2
10
FB2
9
C24
0.1uF
TP19
D13
C22
330pF
TP17
C25
0.1uF
R13
24.3K
[1]
CFF4
OPT
VOUT4
TP20
L4
3.3uH
D53LC, type A
C27
47uF
6.3V
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.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
3
PG2
R15
10K
VOUT4
4
C
Run/SS2
TP18
R14
100K
B
A
PG1
Run/SS1
GND
C26
OPT
R16
4.99K
D14
NSR0230M2T5G
TP13
RUN/SS2
VOUT3
5
GND
R12
20K
17
VIN1
TP14
TP12
LT3506EDHD
C19
0.1uF
VIN
3.6V to 21V
C
D
C16
0.1uF
U2
D10
DFLS230L
VOUT3
1.8V @ 1.6A
C28
0.1uF
CONTRACT NO.
APPROVALS
DATE
DRAWN AntoninaKarpova
4/26/06
CHECKED
TECHNOLOGY
TITLE
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
A
LT3506EDHD
575KHz DUAL MONOLITHIC 1.6A STEP- DOWN REGULATOR
APPROVED
ENGINEER Walker Bai
B
1.2V @ 1.6A
4/26/06
DESIGNER
Monday, August 07, 2006
SIZE
CAGE CODE
SCALE:
2
FILENAME:
DWG NO
REV
DC958A
DC958A.DSN
A
SHEET
1
2
OF
2
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