DC2177A-C - Schematic

5
4
3
2
1
U1
* SEE DEMO MANUAL
[2]
D
D
* VIN
2.1V - 45V
E2
5
6
C5
+ 10µF
50V
7343
E4
C1
2.2µF
50V
1206
C6
(Opt)
0805
7
IN
IN
OUT
OUT
SHDN
C4
0.01µF
C2
10µF
25V
1206
R2
2
C7
(Opt)
7343
GND
R10
100k
5%
0603
VOUTEN
9
1
ON
2
OFF
3
EXT
4
GND REF/BYP
8
R1
60.4k
1
E3
GND
R3
90.9K
C3
0.01µF
VOUT
R4
121k
R5
1
2
1.2V
3
4
1.5V
5
6
1.8V
7
8
2.0V
JP2
143k
9
10
2.5V
E5
R6
11
12
3.3V
13
14
5.0V
15
16
USER SELECT
SHDN
191k
NOTES: UNLESS OTHERWISE SPECIFIED:
VOUT
[2]
+
60.4k
GND
C
ADJ
E1
3
4
R7
C
JP1
274k
1. RESISTORS ARE 0402 1%,
CAPACITORS ARE 06O3.
R8
442k
[2.]
B
ASSY
-A
-B
-C
U1
IOUT
LT3061EDCB 100mA
LT3062EDCB 200mA
LT3063EDCB 200mA
(Opt)
0603
YES
NO
YES
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
B
R9
OUTPUT
DISCHARGE
TECHNOLOGY
RB
ANDY R.
LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY
TITLE: SCHEMATIC
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
4
3
IC NO. LT3061EDCB/LT3062EDCB/LT3063EDCB
N/A
SCALE = NONE
A
45V VIN, MICROPOWER, LOW NOISE
200mA LDO WITH OUTPUT DISCHARGE
SIZE
C:\PADS PROJECTS\2177A(LT3061EDC)\SCH\2177A_REV2.DSN
1630 McCarthy Blvd.
Milpitas, CA 95035 www.linear.com
Phone: (408)432-1900
Fax: (408)434-0507
REV.
2
DC2177A-A/B/C
MODIFY DATE: Jul 21, 2014
2
09:39:45
SHEET
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