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LTC3874 Datasheet(PDF) 11 Page - Linear Technology

Part # LTC3874
Description  High Current Step-Down Converter
Download  18 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3874 Datasheet(HTML) 11 Page - Linear Technology

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11
dc2229af
DEMO MANUAL DC2229A
parts List
ITEM
QTY REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
41
4
R59, R60, R63, R64
RES, 0, 1%, 1225
TEPRO, RN5326
42
1
R50
RES, 78.7k, 1/10W, 1%, 0603
NIC, NRC06F7872TRF
43
2
R43, R53
RES, 665Ω, 1/10W, 1%, 0603
NIC, NRC06F6650TRF
44
1
R46
RES, 2.2Ω, 1/10W, 1%, 0603
NIC, NRC06F2R20TRF
45
1
R76
RES, 30.1k, 1/10W, 1%, 0603
VISHAY, CRCW060330K1FKEA
46
1
U1
IC, STEP-DOWN CONVERTER
LINEAR TECH, LTC3877EUK#PBF
47
1
U2
IC, STEP-DOWN CONTROLLER, SLAVE
LINEAR TECH., LTC3874IUFD#PBF
Dynamic Load Circuits
1
2
Q21, Q22
MOSFET N-CH 30V 80A D2PAK
VISHAY, SUM60N02-3M9P-E3
2
2
R70, R72
RES, 10k, 1/10W, 1%, 0603
NIC, NRC06F1002TRF
3
2
R71, R73
RES, 0.002Ω, 1%, 1/2W, 2010
VISHAY, WSL20102L000FEA
Additional Demo Board Circuit Components
1
0
C12, C13, C15
CAP, OPTIONAL
2
0
C20, C29, C32, C7, C16, C34
CAP, OPTIONAL
3
1
C26
CAP, 47nF, X5R, 25V, 10%, 0603
AVX., 06033D473KAT2A
4
0
C33
CAP, 1206, OPTIONAL
5
0
C7, C16, C34
CAP, 0603, OPTIONAL
6
0
CIN11
CAP, OS-CON, SVP-F8
7
0
CIN12–CIN19
CAP, 1210, OPTIONAL
8
0
COUT21–COUT44
POSCAP, 7343, OPTIONAL
9
0
Q17–Q20
MOSFET, DUAL N-CHANNEL OPTIONAL
INFINEON, BSG0811ND
10
0
Q9–Q16
MOSFET, N-CHANNEL, POWERPAK OPTIONAL
11
2
R13, R22
RES, CHIP, 0Ω , 0603
NIC, NRC06ZOTRF
12
0
R1–R3, R5, R6, R7, R11, R19, R21, R23, R24,
R29, R30, R32, R40, R42, R48, R51, R52,
R57, R65, R69, R79, R80, R81, R75, R77,
RN1, RN2
RES, OPTIONAL
13
1
R25
RES, 10k, 1/10W, 1%, 0603
NIC, NRC06F1002TRF
14
2
R33, R34
RES, 10Ω, 1/10W, 1%, 0603
NIC, NRC06F10R0TRF
15
2
R35, R38
RES, 100k, 1/10W, 1%, 0603
NIC, NRC06F1003TRF
16
1
U3
IC, LT6703IDC-3#PBF
LINEAR TECH., LT6703IDC-3#PBF
Hardware: For Demo Board Only
1
26
E1–E26
TESTPOINT, TURRET, 0.094"
MILL-MAX, 2503-2-00-80-00-00-07-0
2
6
J1–J8
RING, LUG #10
KEYSTONE, 8205, #10
3
6
J1–J8
STUD, TESTPIN
PEM, KFH-032-10
4
6
J1–J8
WASHER, TIN PLATED BRASS
ANY #10
5
12
J1–J8 X (2)
NUT, BRASS 10-32
ANY #10-32
6
2
J9, J10
CONN, BNC 5PINS
CONNEX, 112404
7
8
JP1–JP7, JP10
HEADER, 3-PIN 0.079 SINGLE ROW
SULLINS, NRPN031PAEN-RC
8
2
JP8, JP9
HEADER, 4-PIN, 2mm SINGLE ROW
SULLINS, NRPN041PAEN-RC
DC2155A-B


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