DC813A - Schematic

5
4
3
2
1
U1
LT3013EDE
CT
CT
1000PF,50V
VOUT
250mA MAX.
D
GND
6
5V
3.3V
R3
294K
E4
E5
JP2
VOLTAGE SELECT
C
SHDN
GND 5
PG 6
COUT
4.7UF,10V
0805
5
NC
R2
499K
3
ON
7
VOUT 3
FB/ADJ 4
VIN
4
9
8
OFF
2
JP1
VOUT ENABLE
10
B
R1
100K
E3
VOUT
3
CIN
2.2UF,100V
1812
VIN
2
*
10UF,100V
SANYO
100CV10BS
NC 1
VOUT 2
NC
A
+CINA
E2
11
1
VIN
GND
GND
12
E1
1
**
VIN
3V-80V
13
D
R4
162K
USER
SELECT
R5
TBD
GND
RPG
499K
C
C
E6
PGOOD
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTORS ARE IN OHMS, 0402.
2. INSTALL SHUNTS ON JP1 PIN 2 AND 3, AND JP2 PIN 1 AND 2.
B
B
IS AN OPTIONAL PART. IT IS INSERTED ON THE DC813A TO DAMPEN THE (POSSIBLE) RINGING VOLTAGE DUE TO
* CINA
THE INDUCTANCE OF LONG INPUT CABLES. ON NORMAL, TYPICAL PCBS, WITH SHORT TRACES, CINA IS NOT NEEDED.
IS THE MINIMUM INPUT VOLTAGE THAT THE LT3013 WILL OPERATE AT. THE MINIMUM INPUT VOLTAGE FOR
** 3V
A SPECIFIC REGULATOR CIRCUIT DEPENDS ON THE OUTPUT VOLTAGE (PLUS THE DROPOUT VOLTAGE).
CUSTOMER NOTICE
CONTRACT NO.
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.
A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
APPROVALS
DRAWN:
TECHNOLOGY
KIM T.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
CHECKED:
TITLE: SCHEMATIC
APPROVED:
HIGH VOLTAGE MICROPOWER VOLTAGE REGULATOR
ENGINEER: TOM G.
DESIGNER:
SIZE
A
DATE:
DWG NO.
A
DC813A * LT3013EDE
Monday, September 19, 2005
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