7
dc1596afa
DEMO MANUAL DC1596A
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
SCHEMATIC DIAGRAM
A
A
B
B
C
C
D
D
E
E
4
4
3
3
2
2
1
1
RUN2
ON
OFF
RUN1
ON
OFF
60
0m
A
60
0m
A
4.5V - 15V
1.2V
VFB1
1.5V 1.8V
2.5V
5V
3.3V
VFB2
USER SELECT
USER SELECT
4.5V - 15V
PULSE-SKIP
EXT SYNC
MODE/SYNC
BURST MODE
DUAL 600mA MONOLITHIC, SYNCHRONOUS STEP-DOWN REGULATOR
[*] CIN3 AND CIN4 ARE INSERTED ON DC1596A TO DAMPEN THE (POSSIBLE) RINGING VOLTAGE DUETO THE USE OF LONG INPUT LEADS. ON A NORMAL, TYPICAL PCB, WITH SHORT TRACES, CIN3 AND CIN4 ARE NOT NEEDED.
*
*
TOM G.
PR
OD
UC
TI
ON
2
3-15-13
__
REVISION HISTORY
DESCRIPTION
DATE
APPROVED
ECO
REV
2
Thursday, May 16, 2013
11
HZ
TG
N/A
LTC3607EUD DEMO CIRCUIT 1596A
SI
ZE
DATE
:
IC
N
O.
REV.
SHEET
OF
TITLE
:
APPROVALS
PCB DES.
AP
P ENG.
TECHNOLOGY
Fax: (408)434-0507
M
ilp
itas,
CA
95035
Phone: (408)432-1900
16
30
M
cCar
thy
Bl
vd.
LT
C
Co
nf
id
en
tial-For Custom
er Use O
nly
CUS
TO
M
ER NOTICE
LINEAR TECHNOLOGY HAS M
ADE A BE
ST
E
FF
OR
T
TO
D
ES
IG
N
A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIF
IC
AT
IO
NS
;
HO
WE
VE
R,
IT
RE
MAINS
T
HE
C
US
TO
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APPLICATION. COM
PONENT SUBSTITUTION AND
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RC
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AR
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LA
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UT
M
AY
S
IG
NIF
ICANT
LY
AF
FE
CT
CIRCUIT
PERFORM
ANCE OR RELIABILITY. CONTACT LINEAR
TECHNO
LO
GY
APPL
ICAT
IONS
E
NGINE
ER
ING F
OR AS
SIS
TANCE
.
THI
S CI
RCUI
T I
S PRO
PRI
ETARY TO
LI
NE
AR
TE
CHNOL
OGY
AND
SCHE
M
AT
IC
SU
PP
LI
ED
FO
R
US
E
W
ITH
LINEAR TECHNOLOGY PARTS.
SCALE
=
NO
NE
www.linear.com
E11
GND
R6 196k
1%
E7
VO
U
T1
RPG1
100k
RF
100
E3
GND
CIN1BYP 0.1uF
16V
E6
SYNC
E12
GND
CFFW1 22pF
COUT2 10uF
6.3V
CFFW2 22pF
+
CIN3 22uF
35V
RPG2 100k
RSD1
5.1M
JP1
1 2 3
E2
PVIN
2
JP5
1
2
3
4
5
6 8
7
E4
PGOOD
1
R5 140k
1%
COUT1 10uF
6.3V
R2 887k
1%
JP4
1
2
3
4
5
6 8
7
R4 280k
1%
E10
GND
JP2
1 2 3
R10 OPT
L2
4.7uH
IHLP-1616BZER4R7M11
Vishay
JP3
1
2
3
4
5
6
R3 210k
1%
E8
VO
U
T2
CIN1 10uF
16V
COUT3 0.1uF
16V
+
CIN5 47uF
20V OPT
CIN2 10uF
16V
R7 105k
1%
E9
GND
+
CIN4 22uF
35V
CIN2BYP 0.1uF
16V
RSD2
5.1M
COUT5 47uF
6.3V OPT
E5
PGOOD
2
COUT6 47uF
6.3V OPT
L1
2.2uH
IHLP-1616BZER2R2M11
Vishay
R11 0 Ohm
080
5
E1
PVIN
1
COUT4 0.1uF
16V
CF 0.1uF
R1 210k
1%
U1
LTC3607EUD
9
1
13
10
2
14
8
5
3
11
6
7
12
4
15
16
17
PGND2
MODE/SYNC
RUN2
SGND
PGOOD1
VFB2
SW2
SW1
SVIN
PGOOD2
PVIN1
PVIN2
SGND
PGND1
VFB1
RUN1
GND
R8 121k
1%
+
CIN6 47uF
20V OPT
R9 OPT
