Datasheet
20
LT3466-1
34661f
LT/TP 0705 500 • PRINTED IN USA
© LINEAR TECHNOLOGY CORPORATION 2005
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
TYPICAL APPLICATIO
U
Li-Ion to 8 White LEDs and ±15V TFT LCD Bias Supply
Conversion Efficiency
PART NUMBER DESCRIPTION COMMENTS
LT1618 Constant Current, Constant Voltage 1.4MHz, High Efficiency V
IN
: 1.6V to 18V, V
OUT(MAX)
= 34V, I
Q
= 1.8mA, I
SD
< 1µA,
Boost Regulator MS/EDD Packages
LT1932 Constant Current, 1.2MHz, High Efficiency White LED Boost V
IN
: 1V to 10V, V
OUT(MAX)
= 34V, I
Q
= 1.2mA, I
SD
< 1µA,
Regulator ThinSOT
TM
Package
LT1937 Constant Current, 1.2MHz, High Efficiency White LED Boost V
IN
: 2.5V to 10V, V
OUT(MAX)
= 34V, I
Q
= 1.9mA, I
SD
< 1µA,
Regulator ThinSOT, SC70 Packages
LTC
®
3200-5 Low Noise, 2MHz, Regulated Charge Pump White LED Driver V
IN
: 2.7V to 4.5V, V
OUT(MAX)
= 5V, I
Q
= 8mA, I
SD
< 1µA,
ThinSOT Package
LTC3202 Low Noise, 1.5MHz, Regulated Charge Pump White LED Driver V
IN
: 2.7V to 4.5V, V
OUT(MAX)
= 5.5V, I
Q
= 5mA, I
SD
< 1µA,
MS/EDD Packages
LTC3205 High Efficiency, Multidisplay LED Controller V
IN
: 2.8V to 4.5V, V
OUT(MAX)
= 6V, I
Q
= 50µA, I
SD
< 1µA,
QFN-24 Package
LTC3216 1A Low Noise High Current LED Charge Pump with Independent V
IN
: 2.9V to 4.4V, V
OUT(MAX)
= 5.5V, I
Q
= 300µA, I
SD
< 2.5µA,
Flash/Torch Current Control DFN Package
LTC3453 500mA Synchronous Buck-Boost High Current LED Driver V
IN
: 2.7V to 5.5V, V
OUT(MAX)
= 5.5V, I
Q
= 0.6mA, I
SD
< 6µA,
in Q FN QFN Package
LT3465/LT3465A Constant Current, 1.2MHz/2.7MHz, High Efficiency White LED V
IN
: 2.7V to 16V, V
OUT(MAX)
= 34V, I
Q
= 1.9mA, I
SD
< 1µA,
Boost Regulator with Integrated Schottky Diode ThinSOT Package
LT3466 Dual Constant Current, 2MHz High Efficiency White LED Boost V
IN
: 2.7V to 24V, V
OUT(MAX)
= 40V, I
Q
= 5mA, I
SD
< 16µA,
Regulator with Integrated Schottky Diode DFN Package
LT3479 3A, Full Featured DC/DC Converter with Soft-Start and Inrush V
IN
: 2.5V to 24V, V
OUT(MAX)
= 40V, I
Q
= 6.5mA, I
SD
< 1µA,
Current Protection DFN/TSSOP Packages
ThinSOT is a trademark of Linear Technology Corporation.
RELATED PARTS
CTRL1 CTRL2
R
T
SW1 SW2V
IN
3V TO 5V
–15V
10mA
15V
10mA
L2
33µH
C
IN
1µF
C1
0.1µF
C
OUT1
1µF
C
OUT2
1µF
D1
C
OUT3
1µF
L1
33µH
LT3466-1
V
OUT1
FB1
R
FB1
13.3Ω
26.7k
475k
34661 TA06a
V
OUT2
FB2
63.4k
8 LEDs
ONOFFONOFF
C
IN
: TAIYO YUDEN JMK107BJ105
C
OUT1
, C
OUT2
, C
OUT3
: TAIYO YUDEN GMK316BJ105
C1: TAIYO YUDEN UMK212BJ104
L1, L2: 33µH TOKO D52LC
D1: PHILIPS BAT54S
LED CURRENT (mA)
0
74
EFFICIENCY (%)
76
78
80
82
86
2.5
5 7.5 10
34661 TA06b
12.5 15
84
V
IN
= 3.6V
8 LEDs
+15V/10mA
–15V/10mA