DC2169A - Schematic

5
4
3
2
1
D
D
R13
VIN1
R12
OPT
EN1
E15
C2
L1
0.1uF
10V
0402
9
10
C
C17
1uF
GND
C28
1uF
E5
SW2
SW2
SW2
FB1
FB1
FB2
FB2
4.7pF
R2
187k
12
E9
28
TR/SS1
SYNC/MODE
4
INTVCC
PG1
GND
EN2
R7
22
6
C3
10V
3
4
5
E13
0
0.1uF
L2
2.2uH
0402
C
XFL4020-222ME
4.7pF
C9
26
27
VOUT2
R3
C5
47uF
10V
1210
1M
C27
1uF
C19
1uF
E4
PG2
E12
11
VOUT2
3.3V / 2.5A
GND
E6
2
PG1
E14
R6
1M
21
3
15
2
BURST MODE
B
R5
14.7k
2MHz
NC
SYNC/MODE
1
PULSE SKIPPING
1
TR/SS2
PG2
17
SYNC
E7
C18
22uF
63V
63CE22BS
E11
R4
316K
C6
0.01uF
E8
+
R9
OPT
25
BOOST2
SW1
SW1
E10
R8
1M
C11
2.2uF
50V
1206
NC
24
BOOST1
RT
SYNC/MODE
13
14
C8
C7
0.01uF
SS1/TR1
SS2/TR2
C4
22uF
10V
1210
3.3uH
XAL4030-332ME
BIAS
7
E3
1M
ENUV2
GND
5V / 1.5A
R1
VOUT1
EN/UV1
29
VOUT1
8
VIN2
U1
LT8616EFE
16
23
E2
NC
20
GND
C16
0.1uF
50V
0402
C14
0.1uF
50V
0402
NC
R11
1M
C13
0.1uF
50V
0402
18
C1
22uF
63V
63CE22BS
C15
0.1uF
50V
0402
NC
+
C10
2.2uF
50V
1206
19
PAD150-094
VIN2
4.1V - 42V
VIN2
E1
VIN1
5.8V - 42V
0
VIN1
R10
1M
VOUT2
B
VOUT1
C12
1uF
JP1
4 Pins 2mm Ctrs.
L4
0.22uH
IHLP1212ABERR22M11
L3
30 ohm
MPZ2012S300AT
VIN2
VEMI
E16
C25
0.1uF
50V
0402
C26
0.1uF
50V
0402
C23
4.7uF
50V
1206
C24
10uF
50V
1210
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
TECHNOLOGY
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
TITLE: SCHEMATIC
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
DUAL 42V SYNCHRONOUS
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
MONOLITHIC
STEP-DOWN REGULATOR WITH 6.5µA QUIESCENT CURRENT
NOTE: UNLESS OTHERWISE SPECIFIED
SIZE
1. ALL RESISTORS ARE IN 0603
ALL CAPACITORS ARE IN 0603
5
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
CUSTOMER NOTICE
N/A
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
3
DATE:
2
IC NO.
LT8616EFE
DEMO CIRCUIT 2169A
REV.
4
SHEET
Monday, January 19, 2015
1
1
OF
1
A
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