Datasheet

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