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LT3466-1
TYPICAL APPLICATIO
Li-Ion to 8 White LEDs and ± 15V TFT LCD Bias Supply
3V TO 5V
L1
33 μ H
C IN
1 μ F
L2
33 μ H
C1
0.1 μ F
D1
–15V
10mA
C OUT3
1 μ F
86
84
82
Conversion Efficiency
V IN = 3.6V
8 LEDs
+15V/10mA
–15V/10mA
SW1
V IN
SW2
8 LEDs
C OUT1
1 μ F
V OUT1
LT3466-1
V OUT2
475k
15V
10mA
80
FB1
CTRL1 R T
FB2
CTRL2
26.7k
C OUT2
1 μ F
78
76
R FB1
13.3 ?
OFF ON
63.4k
OFF ON
74
0
2.5
5 7.5 10
12.5
15
C IN : TAIYO YUDEN JMK107BJ105
C OUT1 , C OUT2 , C OUT3 : TAIYO YUDEN GMK316BJ105
C1: TAIYO YUDEN UMK212BJ104
L1, L2: 33 μ H TOKO D52LC
D1: PHILIPS BAT54S
RELATED PARTS
34661 TA06a
LED CURRENT (mA)
34661 TA06b
PART NUMBER
LT1618
LT1932
LT1937
LTC ? 3200-5
LTC3202
LTC3205
LTC3216
LTC3453
LT3465/LT3465A
LT3466
LT3479
DESCRIPTION
Constant Current, Constant Voltage 1.4MHz, 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, 1.5MHz, Regulated Charge Pump White LED Driver
High Efficiency, Multidisplay LED Controller
1A Low Noise High Current LED Charge Pump with Independent
Flash/Torch Current Control
500mA Synchronous Buck-Boost High Current LED Driver
in Q FN
Constant Current, 1.2MHz/2.7MHz, High Efficiency White LED
Boost Regulator with Integrated Schottky Diode
Dual Constant Current, 2MHz High Efficiency White LED Boost
Regulator with Integrated Schottky Diode
3A, Full Featured DC/DC Converter with Soft-Start and Inrush
Current Protection
COMMENTS
V IN : 1.6V to 18V, V OUT(MAX) = 34V, I Q = 1.8mA, I SD < 1 μ A,
MS/EDD Packages
V IN : 1V to 10V, V OUT(MAX) = 34V, I Q = 1.2mA, I SD < 1 μ A,
ThinSOT TM Package
V IN : 2.5V to 10V, V OUT(MAX) = 34V, I Q = 1.9mA, I SD < 1 μ A,
ThinSOT, SC70 Packages
V IN : 2.7V to 4.5V, V OUT(MAX) = 5V, I Q = 8mA, I SD < 1 μ A,
ThinSOT Package
V IN : 2.7V to 4.5V, V OUT(MAX) = 5.5V, I Q = 5mA, I SD < 1 μ A,
MS/EDD Packages
V IN : 2.8V to 4.5V, V OUT(MAX) = 6V, I Q = 50 μ A, I SD < 1 μ A,
QFN-24 Package
V IN : 2.9V to 4.4V, V OUT(MAX) = 5.5V, I Q = 300 μ A, I SD < 2.5 μ A,
DFN Package
V IN : 2.7V to 5.5V, V OUT(MAX) = 5.5V, I Q = 0.6mA, I SD < 6 μ A,
QFN Package
V IN : 2.7V to 16V, V OUT(MAX) = 34V, I Q = 1.9mA, I SD < 1 μ A,
ThinSOT Package
V IN : 2.7V to 24V, V OUT(MAX) = 40V, I Q = 5mA, I SD < 16 μ A,
DFN Package
V IN : 2.5V to 24V, V OUT(MAX) = 40V, I Q = 6.5mA, I SD < 1 μ A,
DFN/TSSOP Packages
ThinSOT is a trademark of Linear Technology Corporation.
34661f
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
20
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
LT/TP 0705 500 ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2005
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