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| LT1618_15 Datasheet, PDF (11/16 Pages) Linear Technology – Constant-Current/ Constant-Voltage 1.4MHz Step-Up DC/DC Converter | |||
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TYPICAL APPLICATIONS
Li Ion White LED Driver
VIN
2.7V TO 5V
C1
4.7µF
10kHz TO 50kHz
PWM
BRIGHTNESS
ADJUST
R3
5.1k
C3
0.1µF
L1
10µH
D1
8
VIN
9
SHDN
7
SW
3
ISP
2
ISN
4
LT1618
1
IADJ
FB
GND
VC
5
10
CC
0.1µF
2.49â¦
20mA
R1
2M
C2
R2
1µF
100k
C1: TAIYO YUDEN JMK212BJ475
C2: TAIYO YUDEN TMK316BJ105
D1: ON SEMICONDUCTOR MBR0530
L1: SUMIDA CLQ4D10-100
(408) 573-4150
(408) 573-4150
(800) 282-9855
(847) 956-0666
1618 ⢠TA04
LT1618
White LED Driver for 20 LEDs
VIN
2.7V TO 5V
C1
4.7µF
10kHz TO 50kHz
PWM
BRIGHTNESS
ADJUST
R3
5.1k
C3
0.1µF
L1
10µH
D1
8
7
VIN
9
SHDN
SW
3
ISP
2
ISN
4
LT1618
IADJ
1
FB
GND
VC
5
10
CC
0.1µF
0.619⦠80mA
R1
2M
C2
R2
1µF
121k
51⦠51⦠51⦠51â¦
C1: TAIYO YUDEN JMK212BJ475
C2: TAIYO YUDEN TMK316BJ105
D1: ON SEMICONDUCTOR MBR0530
L1: SUMIDA CR43-100
(408) 573-4150
(408) 573-4150
(800) 282-9855
(847) 956-0666
1618 ⢠TA05
sn1618 1618fas
11
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