LT1618 LINER [Linear Technology], LT1618 Datasheet - Page 9
LT1618
Manufacturer Part Number
LT1618
Description
Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter
Manufacturer
LINER [Linear Technology]
Datasheet
1.LT1618.pdf
(12 pages)
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TYPICAL APPLICATIO S
12V
4.7 F
V
IN
C1
C1: TAIYO YUDEN EMK316BJ475
C2: TAIYO YUDEN TMK316BJ105
C3, C4: TAIYO YUDEN TMK325BJ335
D1: ON SEMICONDUCTOR MBRM140
L1, L2: SUMIDA CR54-330
L3: SUMIDA CR43-2R2
0.068
8
9
3
4.5W Direct Broadcast Satellite (DBS) Power Supply with Short-Circuit Protection
ISP
V
SHDN
I
ADJ
ISN
IN
4
2
LT1618
33 H
GND
L1
5
SW
U
V
FB
C
7
10
R
2k
C
C
33nF
1
1 F
C2
C
(408) 573-4150
(408) 573-4150
(408) 573-4150
(800) 282-9855
(847) 956-0666
(847) 956-0666
80
75
70
65
60
L2
33 H
D1
0
RHCP
0V
ADD 5V
50
LHCP
3.3V
LOAD CURRENT (mA)
100
Efficiency
150
R5
24.9k
200
R1
100k
R2
10k
250
1618 TA02b
300
C3
3.3 F
2.2 H
L3
MMBT3904
C4
3.3 F
Q1
R3
10k
R4
1k
Q1
FMMT717
ZETEX
22kHz
NETWORK
TUNING
D2
MURS110
LT1618
13.5V/18.5V
1618 TA02a
9
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