Datasheet

LT1618
10
sn1618 1618fas
2-Cell White LED Driver
2-Cell Luxeon LED Driver
TYPICAL APPLICATIONS
U
SHDN
I
ADJ
GND
V
C
V
IN
SW
ISN
ISP
FB
LT1618
R1
2M
R2
160k
V
IN
1.6V TO 3V
10kHz TO 50kHz
PWM
BRIGHTNESS
ADJUST
C1
4.7µF
C
C
0.1µF
C2
1µF
1618 • TA03
2.49
D1
L1
4.7µH
20mA
3
2
1
9
87
510
4
R3
5.1k
C3
0.1µF
C1: TAIYO YUDEN JMK212BJ475 (408) 573-4150
C2: TAIYO YUDEN EMK316BJ105 (408) 573-4150
D1: ON SEMICONDUCTOR MBR0520 (800) 282-9855
L1: SUMIDA CLQ4D10-4R7 (847) 956-0666
SHDN
I
ADJ
GND
V
C
V
IN
SW
ISN
ISP
FB
LT1618
332k
D2
124k
V
IN
1.8V TO 3V
C1
1µF
100nF
C2
1µF
1618 • TA12
0.15
D1
L1
10µH
350mA
3
2
1
9
87
510
4
C1, C2: TAIYO YUDEN JMK107BJ105KA
D1: ON SEMICONDUCTOR MBR0520
D2: LUMILEDS LXHL-BW02
L1: SUMIDA CR43-100