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LT3492
TYPICAL APPLICATION
Triple Buck-Boost Mode 100mA × 4 LED Driver
PV IN
10V TO 16V
C1
2.2μF
L1
22μH
100mA
4 LEDs
L2
22μH
100mA
4 LEDs
L3
22μH
100mA
4 LEDs
3000:1 PWM Dimming at 100Hz
TG1
ISN1
1Ω
ISP1
D1
M1
3.9M
OVP1
100k
TG2
ISN2
1Ω
ISP2
D2
M2
3.9M
OVP2
100k
TG3
ISN3
1Ω
ISP3
D3
M3
3.9M
OVP3
100k
PWM
5V/DIV
I LED
0.1A/DIV
I L
0.5A/DIV
C2
0.1μF
C3
1μF
C4
0.1μF
C5
1μF
C6
0.1μF
C7
1μF
1μs/DIV
3492 TA06b
PV IN
PV IN
PV IN
ISP1-3
SW1
SW2
SW3
TG1-3
OVP1-3
V IN
5V TO 16V
C8
1μF
ISN1-3
V IN
PWM1-3
SHDN
LT3492
V C1-3
V REF
CTRL1-3
150k
18.2k
2.2nF
C1: MURATA GRM31MR71E225KA93
C2, C4, C6: MURATA GRM21BR71H104KA01B
C3, C5, C7: MURATA GRM31MR71H105KA88
C8: MURATA GRM31MR71E105KA93
RELATED PARTS
GND
D1-D3: ROHM RB160M-60
L1-L3: TDK VLF5014AT-220MR62
M1-M3: ZETEX ZXMP6A13F
FADJ
49.9k
1.3MHz
3492 TA06
PART NUMBER
LT3496
LT3474
LT3475
DESCRIPTION
Triple 0.75A, 2.1MHz, 45V LED Driver
36V, 1A (I LED ), 2MHz, Step-Down LED Driver
Dual 1.5A (I LED ), 36V, 2MHz Step-Down LED Driver
COMMENTS
V IN : 3V to 30V, V OUT(MAX) = 45V, Dimming = 3000:1, I SD < 1μA,
4mm × 5mm QFN and TSSOP16E Packages
V IN : 4V to 36V, V OUT(MAX) = 13.5V, True Color PWM Dimming = 400:1,
I SD < 1μA, TSSOP16E Package
V IN : 4V to 36V, V OUT(MAX) = 13.5V, True Color PWM Dimming = 3000:1,
I SD < 1μA, TSSOP20E Package
LT3476
Quad Output 1.5A, 36V, 2MHz High Current LED Driver V IN : 2.8V to 16V, V OUT(MAX) = 36V, True Color PWM Dimming = 1000:1,
with 1000:1 Dimming
I SD < 10μA, 5mm × 7mm QFN Package
LT3477
LT3478/LT3478-1
LT3486
LT3517
LT3518
LT3755/LT3755-1
LT3756-1
LTC ? 3783
3A, 42V, 3MHz Boost, Buck-Boost, Buck LED Driver
4.5A, 42V, 2.5MHz High Current LED Driver with
3000:1 Dimming
Dual 1.3A, 2MHz High Current LED Driver
1.5A, 2.5MHz, 45V LED Driver
2.3A, 2.5MHz, 45V LED Driver
40V IN , 75V OUT , Full Featured LED Controller
100V High Current LED Controller
High Current LED Controller
V IN : 2.5V to 25V, V OUT(MAX) = 40V, Dimming = Analog/PWM, I SD < 1μA,
QFN and TSSOP20E Packages
V IN : 2.8V to 36V, V OUT(MAX) = 42V, True Color PWM Dimming = 3000:1,
I SD < 3μA, TSSOP16E Package
V IN : 2.5V to 24V, V OUT(MAX) = 36V, True Color PWM Dimming = 1000:1,
I SD < 1μA, 5mm × 3mm DFN and TSSOP16E Packages
V IN : 3V to 30V, V OUT(MAX) = 45V, Dimming = 3000:1, I SD < 1μA,
4mm × 4mm QFN and TSSOP16E Packages
V IN : 3V to 30V, V OUT(MAX) = 45V, Dimming = 3000:1, I SD < 1μA,
4mm × 4mm QFN and TSSOP16E Packages
V IN : 4.5V to 40V, V OUT(MAX) = 75V, True Color PWM Dimming = 3000:1,
I SD < 1μA, 3mm × 3mm QFN-16 and MS16E Packages
V IN : 6V to 100V, V OUT(MAX) = 100V, True Color PWM Dimming = 3000:1,
I SD < 1μA, 3mm × 3mm QFN-16 and MS16E Packages
V IN : 3V to 36V, V OUT(MAX) = Ext FET, True Color PWM Dimming = 3000:1,
I SD < 20μA, 5mm × 4mm QFN10 and TSSOP16E Packages
3492fa
22 Linear Technology Corporation
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
1630  McCarthy  Blvd.,  Milpitas,  CA  95035-7417
●
LT 0410 REV A ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2009
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