LT3591
16
3591f
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2007
LT 0207 • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
LT1618 Constant-Current, Constant Voltage 1.24MHz, High Effi ciency
Boost Regulator
Up to 16 White LEDs, V
IN
: 1.6V to 18V, V
OUT(MAX)
= 34V,
I
Q
= 1.8mA, I
SD
< 1µA, MS Package
LT1937 Constant-Current, 1.2MHz, High Effi ciency White LED Boost
Regulator
Up to 4 White LEDs, V
IN
: 2.5V to 10V, V
OUT(MAX)
= 34V,
I
Q
= 1.9mA, I
SD
< 1µA, ThinSOT
TM
/SC70 Packages
LTC
®
3200
Low Noise, 2MHz Regulated Charge Pump White LED Driver Up to 6 White LEDs, V
IN
: 2.7V to 4.5V, I
Q
= 8mA, I
SD
< 1µA,
MS Package
LTC3200-5 Low Noise, 2MHz Regulated Charge Pump White LED Driver Up to 6 White LEDs, V
IN
: 2.7V to 4.5V, I
Q
= 8mA, I
SD
< 1µA,
ThinSOT Package
LTC3201 Low Noise, 1.7MHz Regulated Charge Pump White LED Driver Up to 6 White LEDs, V
IN
: 2.7V to 4.5V, I
Q
= 6.5mA, I
SD
< 1µA,
MS Package
LTC3202 Low Noise, 1.5MHz Regulated Charge Pump White LED Driver Up to 8 White LEDs, V
IN
: 2.7V to 4.5V, I
Q
= 5mA, I
SD
< 1µA,
MS Package
LTC3205 High Effi ciency, Multidisplay LED Controller Up to 4 (Main), 2 (Sub) and RGB, V
IN
: 2.8V to 4.5V,
I
Q
= 50µA, I
SD
< 1µA, 24-Lead QFN Package
LT3465/LT3465A Constant-Current, 1.2MHz/2.7MHz, High Effi ciency White LED
Boost Regulator with Integrated Schottky Diode
Up to 6 White LEDs, V
IN
: 2.7V to 16V, V
OUT(MAX)
= 34V,
I
Q
= 1.9mA, I
SD
< 1µA, ThinSOT Package
LT3466/LT3466-1 Dual Full Function, 2MHz Diodes White LED Step-Up Converter
with Built-In Schottkys
Up to 20 White LEDs, V
IN
: 2.7V to 24V, V
OUT(MAX)
= 39V,
DFN, TSSOP-16 Packages
LT3486 Dual 1.3A White LED Converter with 1000:1 True Color PWM
Dimming
Drives Up to 16 100mA White LEDs. V
IN
: 2.5V to 24V,
V
OUT(MAX)
= 36V, DFN, TSSOP Packages
LT3491 2.3MHz White LED Driver with Integrated Schottky Diode Drives Up to 6 LEDs. V
IN
: 2.5V to 12V, V
OUT(MAX)
= 27V, SC70 and
DFN Packages
LT3497 Dual Full Function 2.3MHz LED Driver with 250:1 True Color
PWM Dimming with Integrated Schottky Diodes
Up to 12 White LEDs, V
IN
: 2.5V to 10V, V
OUT(MAX)
= 32V,
3mm × 2mm DFN Package
ThinSOT is a trademark of Linear Technology Corporation
CTRL
V
IN
C2
2.2µF
C1
1µF
L1
22µH
V
IN
3V TO 5V
R
SENSE
10Ω
3591 TA09a
LT3591
SHUTDOWN AND
DIMMING CONTROL
SW
CAP
LED
GND
C1: TAIYO YUDEN EMK107BJ105MA
C2: MURATA GRM31CR71H225KA88
L1: TAIYO YUDEN NR4018T220M
LED CURRENT (mA)
0
85
80
75
70
65
60
55
15
3591 TA09b
510
20
EFFICIENCY (%)
V
IN
= 3.6V
9 LEDs
Li-Ion Driver for Nine White LEDs Conversion Effi ciency
