DC1021A - Schematic

A
B
C
INTVCC
1
E1
DCM
4
JP1
FCB
RRUN
100K
4
SGND
5
ION
4.5V-16V
C4
10uF
16V
GND
5
6
7
8
SENSE+
24
SENSE-
23
4
PGND
22
Q1
Si7342DP
BG
21
DRVCC
20
INTVCC
19
Z2
18
Z1/Ssenable
17
VOUTsense+
1
2
3
E6
CVCC
10uF
6.3V
L1
1.0uH
IHLP-2525CZ-01
VOUT
E14
VOUT
C9
47uF
6.3V
D1
B320A
3
R7
100
1%
C10
47uF
6.3V
C11
47uF
6.3V
(Opt)
+ C8
(Opt)
26
27
25
ZVCC
2.5V/10A
C12
10uF
6.3V
4
Q2
Si7892ADP
VOUT
E7
+ C7
GND
E8
R8
100
1%
GND
E15
2
16
VINSNS
15
14
PLLIN
PLLFLTR
13
12
VOUTsense+
9
N/C
8
VIN
VDIFFOUT
7
C5
0.22uF
SW
TG
29
28
Z0
FCB
31
32
30
RUN
VON
solder side, exposed pad
TRACK/SS
RON
66.5K
1%
CC2
100pF
DB
CMDSH-3-LTC
2
1
U1
LTC3823EUH
5
6
7
8
ITH
6
CC1
6800pF
C3
10uF
16V
1
2
3
3
BOOST
VFB
11
RC
1.5K
VRNG
2
VOUTsense-
C6
220pF
1
N/C
R6
11K
PGOOD
R5
16.2K
1%
10
3
(Opt)
C2
10uF
16V
E5
33
R3
39K
VIN
E3
+ C1
RBOOST
0
E4
GND
R4
5.11K
1%
VIN
E2
RPG
100K
PGOOD
INTVCC
4
R2
26.7K
1%
3
RUN
E
R1
23.2K
1%
2
FC
D
PLLIN
E11
GND
GND
RVIN
10
RPL
10K
CSS
0.1uF
CPL
0.01uF
CP
1000pF
CVIN
0.1uF
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
1
Customer Notice
NOTES:
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.
UNLESS OTHERWISE SPECIFIED
A
VOUTsense-
E9
3
2
E12
E13
JP2
Z1
SS
E10
TRACK
2
1
TRACK/SS
B
C
D
LINEAR TECHNOLOGY CORPORATION
1630 McCARTHY BLVD.
MILPITAS, CA. 95035
408-432-1900
408-434-0507 FAX
Title
High Efficiency, High Power Buck Converter with
Differential Output Sensing and Tracking
Size
Document Number
Date:
Tuesday, August 22, 2006
Demo Circuit 1021A
Rev
LTC3823EUH
Sheet
E
1
of
1
1
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