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LT3491
TYPICAL APPLICATIO
Li-Ion Driver for Six White LEDs
Efficiency
SHUTDOWN AND
DIMMING CONTROL
80
75
V IN = 3.6V
6 LEDs
V IN
3V TO 5V
L1
10 μ H
V IN
CTRL
LT3491
CAP
R SENSE
10 ?
70
65
60
SW
LED
C1
1 μ F
GND
C2
1 μ F
55
50
45
40
0
5
10
15
20
LED CURRENT (mA)
3491 TA06b
3491 TA06a
C1: TAIYO YUDEN LMK212BJ105MD
C2: TAIYO YUDEN GMK316BJ105ML
L1: MURATA LQH32CN100
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PART NUMBER
LT1618
LT1932
LT1937
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LTC3200-5
LTC3201
LTC3202
LTC3205
LT3465/LT3465A
LT3466/LT3466-1
LT3486
DESCRIPTION
Constant Current, Constant Voltage 1.24MHz, High Efficiency
Boost Regulator
Constant Current, 1.2MHz, High Efficiency White LED
Boost Regulator
Constant Current, 1.2MHz, High Efficiency White LED
Boost Regulator
Low Noise, 2MHz Regulated Charge Pump White LED Driver
Low Noise, 2MHz Regulated Charge Pump White LED Driver
Low Noise, 1.7MHz Regulated Charge Pump White LED Driver
Low Noise, 1.5MHz Regulated Charge Pump White LED Driver
High Efficiency, Multidisplay LED Controller
Constant Current, 1.2MHz/2.7MHz, High Efficiency White LED
Boost Regulator with Integrated Schottky Diode
Dual Full Function, 2MHz Diodes White LED Step-Up Converter
with Built-In Schottkys
Dual 1.3A White LED Converter with 1000:1 True Color PWM
Dimming
COMMENTS
Up to 16 White LEDs, V IN : 1.6V to 18V, V OUT(MAX) = 34V,
I Q = 1.8mA, I SD < 1 μ A, MS Package
Up to 8 White LEDs, V IN : 1V to 10V, V OUT(MAX) = 34V,
I Q = 1.2mA, I SD < 1 μ A, ThinSOT TM Package
Up to 4 White LEDs, V IN : 2.5V to 10V, V OUT(MAX) = 34V,
I Q = 1.9mA, I SD < 1 μ A, ThinSOT/SC70 Packages
Up to 6 White LEDs, V IN : 2.7V to 4.5V, I Q = 8mA, I SD < 1 μ A,
MS Package
Up to 6 White LEDs, V IN : 2.7V to 4.5V, I Q = 8mA, I SD < 1 μ A,
ThinSOT Package
Up to 6 White LEDs, V IN : 2.7V to 4.5V, I Q = 6.5mA, I SD < 1 μ A,
MS Package
Up to 8 White LEDs, V IN : 2.7V to 4.5V, I Q = 5mA, I SD < 1 μ A,
MS Package
Up to 4 (Main), 2 (Sub) and RGB, V IN : 2.8V to 4.5V,
I Q = 50 μ A, I SD < 1 μ A, 24-Lead QFN Package
Up to 6 White LEDs, V IN : 2.7V to 16V, V OUT(MAX) = 34V,
I Q = 1.9mA, I SD < 1 μ A, ThinSOT Package
Up to 20 White LEDs, V IN : 2.7V to 24V, V OUT(MAX) = 39V,
DFN, TSSOP-16 Packages
Drives Up to 16 100mA White LEDs. V IN : 2.5V to 24V,
V OUT(MAX) = 36V, DFN, TSSOP Packages
ThinSOT is a trademark of Linear Technology Corporation.
3491fa
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
LT 0406 ? PRINTED IN THE USA
? LINEAR TECHNOLOGY CORPORATION 2006
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