15
dc2106abf
DEMO MANUAL DC2106A-B
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
Figure 7. Circuit Schematic
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
ON
OFF
PULSE
BIAS
ALL PARTS ON THIS PAGE ARE FOR DEMO ONLY, NOT NEEDED IN CUSTOMER DESIGN
OPT
2010
2010
OPT
DYNAMIC LOAD CIRCUIT
BLEEDER LOADS
70Hz, 3% Duty Cycle
INT
EXT
1%
1%
0805
IOUT TST
VOUT0
µMODULE REGULATOR WITH POWER SYSTEM MANAGEMENT
VIN
VOUT0
VOUT1
VOUT0
+5V
+5V
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
Monday, May 06, 2013
66
HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN
HZ
JIAN L.
B
LTM4676EY / LTM4630EV
DEMO CIRCUIT 2106A-B
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
Monday, May 06, 2013
66
HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN
HZ
JIAN L.
B
LTM4676EY / LTM4630EV
DEMO CIRCUIT 2106A-B
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
Monday, May 06, 2013
66
HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN
HZ
JIAN L.
B
LTM4676EY / LTM4630EV
DEMO CIRCUIT 2106A-B
R88 1M
R88 1M
Q6 RJK0305DPB
Q6 RJK0305DPB
1
2
5
3
4
R90
154K
R90
154K
R100 0.01
R100 0.01
R91
3.3
R91
3.3
E24
GND
E24
GND
E23
EXT PULSE
E23
EXT PULSE
JP1JP1
1
2
3
J11J11
1
2
3
4
5
R93 681K
R93 681K
U9
LT1129CS8-5
U9
LT1129CS8-5
OUTPUT
1
SENSE/ADJ
2
GND
3
NC
4
SHDN
5
GND
6
GND
7
VIN
8
JP2JP2
1
2
3
R89 20K
R89 20K
R87 2
R87 2
C25 0.22uF
C25 0.22uF
J10J10
1
2
3
4
5
C31 1uF
C31 1uF
C26 0.1uF
C26 0.1uF
R99 0.01
R99 0.01
R92 20K
R92 20K
U7
LTC6992-1
U7
LTC6992-1
MOD
1
GND
2
SET
3
DIV
4
V+
5
OUT
6
Q5 RJK0305DPB
Q5 RJK0305DPB
1
2
5
3
4
R103 100K
R103 100K
C29 1uF
C29 1uF
R102 300
R102 300
R94 10K
R94 10K
C30 4.7uF
C30 4.7uF
R95
82.5
R95
82.5
R96R96
R98 300
R98 300
U8
LT1803IS5
U8
LT1803IS5
VOUT
1
V-
2
+IN
3
-IN
4
V+
5
C27 150pF
C27 150pF
R101
5K
R101
5K
R97R97
C28 1uF
C28 1uF