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LT3518HUF#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
LT3518
13
3518ff
For more information www.linear.com/LT3518
typical applications
Buck Mode 1.5A LED Driver
1000:1 PWM Dimming at 120Hz
500mA, 5V to 12V Boost Converter with Accurate Input Current Limit
Efficiency
1.5A
D1
C3
10µF
L1
15µH
C2
2.2µF
C4
0.1µF
R
SENSE
68mΩ
M1
C1
2.2µF
ISP
TGEN GNDV
REF
VC
R
T
16.9k
1MHz
3518 TA02a
C5
0.1µF
C1: KEMET C0805C225K4RAC
C2: MURATA GRM31MR71E225KA93
C3: MURATA GRM32DR71E106KA12B
C4, C5: MURATA GRM21BR71H104KA01B
D1: ZETEX ZLLS2000TA
L1: TOKO B992AS-150M
LEDS: LUXEON K2 (WHITE)
M1: ZETEX ZXMP6A13GTA
V
IN
SHDN
CTRL
PWM
SYNC
FB
SS
RT
SW
PV
IN
24V
V
IN
3.3V
ISN
LT3518
TG
PWM
V
REF
PWM
5V/DIV
I
LED
1A/DIV
I
L
1A/DIV
2µs/DIVPV
IN
= 24V
f
OSC
= 1MHz
I
LED
= 1.5A
3518 TA02b
SW
VC GND SS
V
IN
CTRL
PWM
SHDN
TGEN
V
REF
FB
V
OUT
12V
500mA
V
IN
5V
SYNC
R1
549k
C2
10µF
C3
0.1µF
C4
10nF
SHDN
RT
ISN
LT3518
TGISP
D1
R2
49.9k
R
T
6.04k
2MHz
R3
10k
3518 TA03a
C2
2.2µF
L1
4.3µH
R
SENSE
50mΩ
C1: KEMET C0805C225K4RAC
C2: KEMET C1206C106K4RAC
C3: MURATA GRM21BR71H104KA01B
C4: MURATA GCM033R71A103KA03
D1: ZETEX ZLLS2000TA
L1: TOKO B992AS-4R3N
I
LOAD
(mA)
0
EFFICIENCY (%)
70
80
400
3518 TA03b
60
50
100
200
300
500
90
LT3518
14
3518ff
For more information www.linear.com/LT3518
typical applications
3000:1 PWM Dimming at 120Hz Efficiency
Buck-Boost Mode LED Driver
D1
L1
4.3µH
R
SENSE
330mΩ
SHDN
VC GNDRT SS
R
T
6.04k
2MHz
3518 TA04a
C3
0.1µF
C2
4.7µF
R1
3.92M
R2
124k
M1
C5
0.22µF
C1
2.2µF
C4
0.1µF
PWM
ISP
FB
ISN
TG
TGEN
V
REF
CTRL
SYNC
300mA
V
IN
8V TO 16V
V
IN
LT3518
SW
PWM
C1: KEMET C0806C225K4RAC
C2: KEMET C1206C475K3RAC
C3, C4: MURATA GRM21BR71H104KA01B
C5: MURATA GRM21BR71H224KA01B
D1: ZETEX ZLLS2000TA
L1: TOKO B992AS-4R3N
LEDS: LUXEON I (WHITE)
M1: ZETEX ZXMP6A13GTA
PWM
5V/DIV
I
LED
200mA/DIV
I
L1
1A/DIV
500ns/DIVV
IN
= 10V
f
OSC
= 2MHz
I
LED
= 300mA
3518 TA04b
PWM DUTY CYCLE (%)
0
70
80
90
80
3518 TA04c
60
50
20 40 60 100
40
30
20
EFFICIENCY (%)
V
IN
= 10V
CTRL = V
REF
LT3518
15
3518ff
For more information www.linear.com/LT3518
typical applications
1000:1 PWM Dimming at 120Hz Efficiency
Buck Mode 1A LED Driver with Open LED Protection and Sync Input
1A
LED1
LED6
D1
C3
10µF
R1
49.9k
R2
2.00k
FB
R3
5.62k
L1
10µH
FB
C2
2.2µF
C4
0.1µF
R
SENSE
100mΩ
M1
C1
2.2µF
V
REF
ISP
TGEN GNDV
REF
VC
R
T
16.9k
1MHz
3518 TA05a
C5
0.1µF
V
IN
SHDN
CTRL
PWM
SYNC
FB
SS
RT
SW
PV
IN
32V
V
IN
3.3V
ISN
LT3518
TG
PWM
SYNC
3.3V, 1.2MHz
C1: KEMET C0806C225K4RAC
C2: MURATA GRM31MR71E225KA93
C3: MURATA GRM32DR71E106KA12B
C4, C5: MURATA GRM21BR71H104KA01B
D1: ZETEX ZLLS2000TA
L1: TOKO B992AS-100M
LEDS: LUXEON III (WHITE)
M1: ZETEX ZXMP6A13GTA
Q1: PHILIPS PMBT3906
Q1
PWM
5V/DIV
I
LED
1A/DIV
I
L1
1A/DIV
2µs/DIVPV
IN
= 32V
f
OSC
= 1.2MHz
I
LED
= 1A
3518 TA05b
PWM DUTY CYCLE (%)
0
40
EFFICIENCY (%)
50
60
70
80
90
100
20 40 60 80
3518 TA05c
100
CTRL = V
REF
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LT3518HUF#TRPBF

Mfr. #:
Buy LT3518HUF#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
LED Lighting Drivers 2.3A/1.3A, 45V, 2.5MHz Full Featured LED Driver w/ True Color PWM Dimming
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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