DC863A - Schematic

5
ON
D
4
3
2
1
JP1
VOUT
OFF
R5
1.0M
D
U1
VIN
VIN E1
2.7V-5.5V
+C7
47uF,10V
3528
C
GND
4
+C5
0.22uF
0603
E2
R1
R8
C1
2.2uF
6.3V
0603
R7
* * *
C2
2.2uF
6.3V
0603
SHDN
7
VIN
VOUT 2
3
C1+
C2+ 1
10
C1-
C2- 8
6
R2
100K
1%
MODE
3
5
*
JP2
VSEL
9
VIN
C3
2.2uF
6.3V
0603
R3
C4
4.7uF
16V
0805
R6
* *
*
*
C6
4.7uF
6.3V
0603
*
E4
C8
VSEL/FB 5
VOUT
GND
C
R4
11
2
4 5V
6 4.5V
FOR BOARD ASSEMBLY
B
B
*
U1
JP2
C8
R1
R3
R4
R6
DC863A-A
LTC3203BEDD
OPT
4.7PF
267K
280K
105K
0
DC863A-B
LTC3203EDD-1
INSTALLED
OPT
OPT
OPT
3.32M
OPT
402K
357K
4.5V OR [email protected] BURST MODE
DC863A-C
LTC3203BEDD-1
INSTALLED
OPT
OPT
OPT
3.32M
OPT
402K
357K
4.5V OR [email protected]
CUSTOMER NOTICE
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0402.
2. INSTALL SHUNT ON JP1(1&2), JP2 (1&3, 2&4).
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
CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
4
R7
R8
OPT
VOUT
[email protected]
CONTRACT NO.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
E3
GND GND
1
A
*
3
APPROVALS
DRAWN:
CHECKED:
APPROVED:
ENGINEER: JULIAN Z.
DESIGNER:
TECHNOLOGY
KIM T.
TITLE:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
SCHEMATIC
A
500mA LOW NOISE, HIGH EFFICIENCY CHARGE PUMP
SIZE
DWG NO.
A
DATE:
DC863A-LTC3203
Wednesday, June 28, 2006
2
SHEET 1
1
REV
A
OF 1
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