LT3496
20
3496ff
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
l
FAX: (408) 434-0507
l
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2007
LT 0510 REV F • PRINTED IN USA
typical application
PART NUMBER DESCRIPTION COMMENTS
LT1618 Constant Current, 1.4MHz, 1.5A Boost Converter V
IN
: 1.6V to 18V, V
OUT(MAX)
= 36V, I
Q
= 1.8mA, I
SD
< 1µA,
10-Pin MS Package
LT3453 1MHz, 800mA Synchronous Buck-Boost High Power
LED Driver
V
IN
: 2.7V to 5.5V, V
OUT(MAX)
= 5.5V, I
Q
= 2.5mA, I
SD
< 6µA,
QFN Package
LT3466 Dual Constant Current, 2MHz, High Efficiency White LED
Boost Regulator with Integrated Schottky Diode
V
IN
: 2.7V to 24V, V
OUT(MAX)
= 40V, I
Q
= 5mA, I
SD
< 16µA, DFN Package
LT3467/LT3467A 1.1A (ISW), 1.3MHz/2.1MHz, High Efficiency Step-Up
DC/DC Converters with Integrated Soft-Start
V
IN
: 2.4V to 16V, V
OUT(MAX)
= 40V, I
Q
= 1.2mA, I
SD
< 1µA,
ThinSOT™ Package
LT3474 Step-Down 1A 2MHz LED Driver V
IN
: 4V to 36V, V
OUT(MAX)
= 15V, I
Q
= 2.6mA, I
SD
< 1µA,
TSSOP Package
LT3475 Dual Step-Down 1.5A, 2mV LED Driver V
IN
: 4V to 36V, I
Q
= 6mA, I
SD
< 1µA, 20-Lead TSSOPE Package
LT3476 High Current 2MHz Quad 1.5A Output LED Driver V
IN
: 2.8V to 16V, V
OUT(MAX)
= 33.5V, I
Q
= 5.5mA, I
SD
< 1µA,
38-Lead 5mm × 7mm QFN Package
LT3477 3A, 42V, 3MHz Step-Up Regulator with Dual Rail-to-Rail
Current Sense
V
IN
: 2.5V to 2.5V, V
OUT(MAX)
= 40V, I
Q
= 5mA, I
SD
< 1µA, QFN, 16-Pin
TSSOPE Packages
LT3478/LT3478-1 4.5A, 2.25MHz LED Driver with 3000:1 Ture Color PWM™
Dimming
V
IN
: 2.8V to 36V, V
OUT(MAX)
= 40V, I
Q
= 6.1mA, I
SD
< 3µA, 16-Pin
TSSOPE Package
LT3479 3A, Full-Featured DC/DC Converter with Soft-Start and
Inrush Current Protection
V
IN
: 2.5V to 24V, V
OUT(MAX)
= 40V, I
Q
= 6.5mA, I
SD
< 1µA,
DFN, TSSOP Packages
Triple Buck-Boost Mode 100mA × 6 LED Driver
3000:1 PWM Dimming at 120Hz
PV
IN
10V TO 16V
470pF
3496 TA06
SW1 SW2
PV
IN
LT3496
GND
SW3
TG1, TG2, TG3
OVP1, OVP2, OVP3
VC1, VC2, VC3
V
REF
f
ADJ
CTRL1, CTRL2, CTRL3
CAP1, CAP2, CAP3
LED1, LED2, LED3
V
IN
PWM1, PWM2, PWM3
SHDN
PWM
SHDN
V
IN
3V TO 16V
C8
1µF
6 LEDs
100mA
3.9M
100k
OVP3
10k
LED3
TG3
1Ω
L1
10µH
L2
10µH
L3
10µH
CAP3
LED2
1Ω
CAP2
C2
0.1µF
C4
0.1µF
C6
0.1µF
C5
1µF
PV
IN
C3
1µF
PV
IN
C7
1µF
LED1
D1 D2 D3
1Ω
CAP1
3.9M
100k
OVP2
3.9M
100k
OVP1
C1
2.2µF
6 LEDs
100mA
TG2TG1
6 LEDs
100mA
M1 M2 M3
C1: MURATA GRM31MR71E225KA93
C2, C4, C6: MURATA GRM21BR71H104KA01B
C3, C5, C7: MURATA GRM31MR71H105KA88
C8: MURATA GRM31MR71E105KA93
D1-D3: DIODES DFLS160
L1-L3: TAIYO YUDEN NP04SZB 100M
M1-M3: ZETEX ZXMP6A13F
PWM
5V/DIV
I
L
0.5A/DIV
I
LED
0.1A/DIV
0.5µs/DIV
3496 TA06b
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