9
dc2359afb
DEMO MANUAL DC2359A
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
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
[1]
CIN IS AN OPTIONAL CAPACITOR. IT IS INSERTED ON THE DC2359A TO DAMPEN THE (POSSIBLE) RINGING VOLTAGE DUE TO THE LONG INPUT LEADS. ON A NORMAL, TYPICAL PCB, WITH SHORT TRACES, THE CAPACITOR IS NOT NEEDED.
NOTES:
[2]
FOR FCM OPERATION, STUFF R9 AND
R10 WITH 1MEG OHM RESISTOR.
[2]
[2]
[2]
VOUT
Coilcraft XAL4030-332ME
ADJ
INTVCC
INTVCC
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
Wednesday, August 12, 2015
11
MONOLITHIC SYNCHRONOUS BUCK REGULATOR
` \
Z _
N/A
LTC3624HMSE DEMO CIRCUIT 2359A
WITH ULTRA-LOW QUIESCENT CURRENT
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
Wednesday, August 12, 2015
11
MONOLITHIC SYNCHRONOUS BUCK REGULATOR
` \
Z _
N/A
LTC3624HMSE DEMO CIRCUIT 2359A
WITH ULTRA-LOW QUIESCENT CURRENT
SIZE
DATE:
IC NO.
REV.
SHEET
OF
TITLE:
APPROVALS
PCB DES.
APP ENG.
TECHNOLOGY
Fax: (408)434-0507
Milpitas, CA 95035 Phone: (408)432-1900
1630 McCarthy Blvd.
LTC Confidential-For Customer Use Only
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
SCHEMATIC
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
SCALE = NONE
www.linear.com
1
Wednesday, August 12, 2015
11
MONOLITHIC SYNCHRONOUS BUCK REGULATOR
` \
Z _
N/A
LTC3624HMSE DEMO CIRCUIT 2359A
WITH ULTRA-LOW QUIESCENT CURRENT
E10
GND
22uF
C3
25V 1206
RSET 619k 1%
R10 OPT
JP1
ON
OFF
RUN
1
3
2
U1
LTC3624HMSE (1MHz)
VIN
3
RUN
5
INTVCC
9
MODE/SYNC
10
PGOOD
6
FB
8
12
GND
11
GND
VIN
4
NC
7
SW
1
SW
2
C8 2.2uF 10V 0603
R1 619k 1%
E7
RUN
JP8 USER SELECT
15pF
CFF
JP7 5.0V
E2
GND
E3
INTVCC
OPT
C5
1206
R4 137k 1%
JP2
BM
FCM / SYNC
MODE
PS
1
3
2
4
R6 OPT
C7 OPT
47uF
C4
6.3V 1206
R3 196k 1%
R11 1Meg
E4
SYNC
R8 OPT
E8
VOUT
2A
E5
GND
22uF
C2
25V 1206
E1
VIN
2.7V - 17V
E6
PGOOD
R5 84.5K 1%
R2 309k 1%
R9 OPT
C6 OPT 1210
JP6 3.3V
JP3 1.2V
+
CIN 47uF 20V
[1]
R12 0
JP5 2.5V
R7 0
JP4 1.8V
L1
3.3uH
E9
GND
