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| 型号： | LT3479EFE#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 20/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BOOST INV ADJ 3A 16TSSOP |
| 标准包装： | 95 |
| 类型： | 升压（升压），反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.24 V ~ 42 V |
| 输入电压： | 2.5 V ~ 24 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 200kHz ~ 3.5MHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm）裸露焊盘 |
| 包装： | 管件 |
| 供应商设备封装： | 16-TSSOP-EP |
| 产品目录页面： | 1331 (CN2011-ZH PDF) |
LT3479
TYPICAL APPLICATION
Lumiled Driver for Photo Flash with Output Disconnnect
V IN
L1
4.7μH
D1
3.3V TO 4.2V
C1
2.2μF
V IN V S L
SW
D2
D3
C2
2.2μF
FBN
ON
SHDN
M1
ON
SS
LT3479
V REF
115k
0.2Ω
I LED
500mA/100mA
FBP
R T
GND
V C
2.49k
10nF
7.5k
10k
10k
TORCH MODE
I LED = 100mA
2.2nF
FLASH MODE
C1, C2: TAIYO YUDEN LMK316BJ225MD
D1: PHILIPS PMEG2010
D2, D3: LUMILEDS LXHL-PW01
L1: SUMIDA CDRH4D28-4R7
M1: VISHAY SILICONIX Si2302ADS
I LED = 500mA
3479 TA09
V OUT
1V/DIV
INDUCTOR
CURRENT
0.5A/DIV
Lumileds Start-Up
I LED
0.2A/DIV
V OUT
AC-COUPLED
500mV/DIV
Lumileds Torch/Flash Transition
0.2ms/DIV
3479 TA09b
I LED 500mA
50μs/DIV
100mA
500mA
3479 TA09c
RELATED PARTS
PART NUMBER
LT1618
LTC?3216
LTC3436
LTC3453
LT3466
DESCRIPTION
Constant Current, Constant Voltage 1.4MHz,
High Ef?ciency Boost Regulator
1A Low Noise High Current LED Charge Pump
with Independent Torch/Flash Current Control
3A (I SW ), 1MHz, 34V Step-Up DC/DC Converter
Synchronous Buck-Boost High Power White
LED Driver
Dual Constant Current, 2MHz, High Ef?ciency
COMMENTS
V IN : 1.6V to 18V, V OUT(MAX) = 5.5V, I Q = 2.5mA, I SD = <1μA, QFN16 Package
V IN : 2.9V to 4.4V, V OUT(MAX) = 5.5V, I Q = 300μA, I SD = <1μA, DFN12 Package
V IN : 3V to 25V, V OUT(MAX) = 34V, I Q = 0.9mA, I SD = <6μA, TSSOP16E Package
V IN : 2.7V to 5.5V, V OUT(MAX) = 5.5V, I Q = 2.5mA, I SD = <1μA, QFN16 Package
V IN : 2.7V to 24V, V OUT(MAX) = 40V, I Q = 5mA, I SD = <16μA, DFN Package
White LED Boost Regulator with Integrated
Schottky Diode
3479fc
20 Linear Technology Corporation
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
LT 0809 REV C ? PRINTED IN USA
? LINEAR TECHNOLOGY CORPORATION 2004
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| LT3480EDD#PBF | 功能描述:IC REG BUCK ADJ 2A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
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