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参数资料
| 型号： | LTC3490ES8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 12/12页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER PHOTO FLASH 8-SOIC |
| 标准包装： | 2,500 |
| 恒定电流： | 是 |
| 拓扑： | PWM，升压（升压） |
| 输出数： | 1 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 闪灯/白光 |
| 类型 - 次要： | 白色 LED |
| 频率： | 1MHz ~ 1.6MHz |
| 电源电压： | 1 V ~ 3.2 V |
| 输出电压： | 2.8 V ~ 4 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
| 工作温度： | -40°C ~ 85°C |
LTC3490
TYPICAL APPLICATIO
LED Driver Drops to 20% Amplitude on Low-Battery Detect
3.3 μ H
ON/OFF
V IN
SW
CAP
1 NiMH OR
ALKALINE
CELL
+
1M
LTC3490
CTRL/SHDN LED
350mA/70mA
4.7 μ F
CELLS
LOBAT
LUMILEDS
1M
432k
GND
LUXEON
LXHL-BWO2
3490 TA05
RELATED PARTS
LT 1618
PART NUMBER
?
LT1932
LT1937
LTC3205
LTC3216
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
High Efficiency, Multi-Display LED Controller
1A Low Noise, High Current LED Charge Pump with
Independent Flash/Torch Current Control
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 Packages
V IN : 2.5V to 10V, V OUT(MAX) = 34V, I Q = 1.9mA, I SD < 1 μ A, ThinSOT TM /SC70
Packages
V IN : 2.8V to 4.5V, V OUT(MAX) = 6V, I Q = 50 μ A, I SD < 1 μ A, QFN24 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
LTC3402
2A, 3MHz Micropower Synchronous Boost Converter V IN : 0.85V to 5V, V OUT(MAX) = 5V, I Q = < 38 μ A, I SD < 1 μ A,
MS/EDD Packages
LTC3453
LT3465/LT3465A
LT3466
LT3479
500mA Synchronous Buck-Boost High Current LED
Driver in QFN
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
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.
3490fa
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
LT 0606 REV A ? PRINTED IN THE USA
? LINEAR TECHNOLOGY CORPORATION 2005
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