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LT1618 Datasheet(PDF) 12 Page - Linear Technology

Part # LT1618
Description  Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1618 Datasheet(HTML) 12 Page - Linear Technology

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LT1618
12
sn1618 1618fas
TYPICAL APPLICATIONS
USB to 5V SEPIC Converter
Efficiency
USB SEPIC During Start-Up
USB SEPIC Start-Up with Output Shorted
LOAD CURRENT (mA)
0
350
1618 F09b
100
250
80
75
70
65
60
50
150
200
300
1ms/DIV
1618 TA10
VOUT
2V/DIV
IIN
50mA/DIV
1ms/DIV
1618 TA11
VOUT
2V/DIV
50mA/DIV
SHDN
IADJ
VC
VIN
SW
ISN
ISP
FB
LT1618
R1
316k
R2
107k
VIN
5V
C1
4.7µF
10nF
C2
10µF
1618 • TA09a
D1
L1
10µH
L2
10µH
3
2
1
9
8
7
GND
510
4
0.1Ω
2k
13k
20k
VOUT
5V
C3
0.47µF
IIN
C1: TAIYO YUDEN JMK212BJ475
(408) 573-4150
C2: TAIYO YUDEN JMK316BJ106
(408) 573-4150
C3: TAIYO YUDEN EMK212BJ474
(408) 573-4150
D1: ON SEMICONDUCTOR MBR0520
(800) 282-9855
L1: SUMIDA CR43-100
(847) 956-0666
OFF ON
0V
3.3V
100mA 500mA
0V
3.3V



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