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LTC3230
TYPICAL APPLICATION
3-LED Main and One LED Sub at 20mA Full Scale
C1
1 F
C2
1 F
V IN = 2.7V
TO 5.5V
C3
C1P C1M C2P C2M
V IN CPO
C6
MAIN
SUB
2.2 F
LTC3230
1 F D1
D2
D3
D5
ENM
ENM
MLED1
ENS
ENS
MLED2
MLED3
MLED4
MLED4
DISABLED
ENLDO1
ENLDO2
ENLDO1
ENLDO2
V1
SLED
LDO1
LDO2
1.2V
3.3V
3230 TA02
R SET
V2
R SET
GND
C5
1 F
C4
1 F
21.5k
ENM OR ENS
RELATED PARTS
SET BRIGHTNESS LEVEL
ON
OFF
PART
NUMBER
LT ? 3023
DESCRIPTION
Dual 100mA, Low Noise Micropower, LDO
COMMENTS
Dual Low Noise < 20μV RMS , Stable with 1μF Ceramic Capacitors, V IN : 1.8V to 20V,
V OUT(MIN) = 1.22V, Dropout Voltage = 0.3V, I Q = 40μA, I SD < 1μA, V OUT = Adj., MS10,
DFN Packages
LT3024
LT3028
Dual 100mA/500mA, Low Noise Micropower, LDO Dual Low Noise < 20μV RMS , Stable with 1μF/3.3μF Ceramic Capacitors,
V IN : 1.8V to 20V, V OUT(MIN) = 1.22V, Dropout Voltage = 0.3V, I Q = 60μA,
I SD < 1μA, V OUT = Adj., TSSOP16, DFN Packages
Dual 100mA/500mA, Low Noise Micropower, LDO Dual Low Noise < 20μV RMS , Stable with 1μF/3.3μF Ceramic Capacitors,
with Independent Inputs
V IN : 1.8V to 20V, V OUT(MIN) = 1.22V, Dropout Voltage = 0.3V/3.3μF, I Q = 60μA/65μA,
I SD < 1μA, V OUT = Adj., TSSOP16, DFN Packages
LTC3207
LTC3208
LTC3209
LTC3210/
LTC3210-1/
LTC3210-2/
LTC3210-3
LTC3219
600mA Universal Multi-Output LED/CAM Driver
High Current Software Con?gurable Multidisplay
LED Controller
600mA MAIN/Camera LED Controller
500mA MAIN/Camera LED Controller
250mA Universal 9-Channel LED Driver
V BAT : 2.9V to 5.5V, 12 Universal Individually Controlled LED Drivers, One Camera
Driver, 4mm × 4mm QFN Package
95% Ef?ciency, V IN : 2.9V to 4.5V, 1A Output Current; Up to 17 LEDs for 5 Displays,
5mm × 5mm QFN Package
Up to 8 LEDs, 94% Ef?ciency, V IN : 2.9V to 4.5V, 1x/1.5x/2x Boost Modes, 4mm ×
4mm QFN Package
Up to 5 LEDs, 95% Ef?ciency, V IN : 2.9V to 4.5V, 1x/1.5x/2x Boost Modes, Exponential
Brightness Control, “-1” Version Has 64-Step Linear Brightness Control, 3mm × 3mm
QFN Package, “-2” Version Drives 4 Main LEDs, “-3” Drives 3 Main LEDs
91% Ef?ciency, V IN : 2.9V to 5.5V, Up to 9 × 28mA LEDs, Universal LED
Programmability, 3mm × 3mm QFN20 Package
3230fa
16 Linear Technology Corporation
(408) 432-1900 ● FAX: (408) 434-0507
www.linear.com
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
LT 0108 REV A ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2007
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