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LT1618 Datasheet(PDF) 13 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) 13 Page - Linear Technology

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LT1618
13
sn1618 1618fas
TYPICAL APPLICATIO S
Efficiency
12V Boost Converter with 500mA Input Current Limit
12V Boost Converter Start-Up with Input Current Limit
(VIN = 1.8V, ILOAD = 40mA)
12V Boost Converter Start-Up without Input Current Limit
(VIN = 1.8V, ILOAD = 40mA)
L0AD CURRENT (mA)
0
120 140
1618 TA06b
40
80
90
85
80
75
70
65
60
20
60
100
160
VIN = 5V
VIN = 3.3V
SHDN
IADJ
VC
VIN
SW
ISN
ISP
FB
LT1618
R1
909k
R2
107k
VIN
1.8V TO 5V
C1
4.7µF
10nF
C2
4.7µF
1618 • TA06a
D1
L1
10µH
3
2
1
9
8
7
GND
510
4
0.1Ω
2k
VOUT
12V
C1: TAIYO YUDEN JMK212BJ475
(408) 573-4150
C2: TAIYO YUDEN EMK316BJ475
(408) 573-4150
D1: ON SEMICONDUCTOR MBR0520
(800) 282-9855
L1: SUMIDA CR43-100
(847) 956-0666
IL1
50µs/DIV
1618 TA07
VOUT
5V/DIV
ILI
200mA/DIV
50µs/DIV
1618 TA08
VOUT
5V/DIV
ILI
200mA/DIV



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