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| 型号： | LT3470ITS8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK ADJ 0.2A TSOT23-8 |
| 标准包装： | 2,500 |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 1.25 V ~ 16 V |
| 输入电压： | 4 V ~ 40 V |
| PWM 型： | Burst Mode? |
| 电流 - 输出： | 200mA |
| 同步整流器： | 无 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-8 薄型，TSOT-23-8 |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | TSOT-23-8 |
LT3470
Low Quiescent Current: 26μA at 12V IN to 3.3V OUT
Integrated Boost and Catch Diodes
Input Range: 4V to 40V
Low Output Ripple: <10mV
< 1μA in Shutdown Mode
Output Voltage: 1.25V to 16V
200mA Output Current
Hysteretic Mode Control
Solution Size as Small as 50mm 2
Low Profile (0.75mm) 3mm × 2mm Thermally
Automotive Battery Regulation
Power for Portable Products
Distributed Supply Regulation
Industrial Supplies
Wall Transformer Regulation
FEATURES
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– Low Ripple Burst Mode ? Operation at Light Loads
– Continuous Operation at Higher Loads
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Enhanced 8-Lead DD and 1mm ThinSOT Packages
APPLICATIONS
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Micropower Buck Regulator
with Integrated Boost and
Catch Diodes
DESCRIPTION
The LT ? 3470 is a micropower step-down DC/DC con-
verter that integrates a 300mA power switch, catch diode
and boost diode into low profile 3mm × 2mm DD and
ThinSOT? packages. The LT3470 combines Burst Mode
and continuous operation to allow the use of tiny induc-
tor and capacitors while providing a low ripple output to
loads of up to 200mA.
With its wide input range of 4V to 40V, the LT3470 can
regulate a wide variety of power sources, from 2-cell Li-Ion
batteries to unregulated wall transformers and lead-acid
batteries. Quiescent current in regulation is just 26μA in
a typical application while a zero current shutdown mode
disconnects the load from the input source, simplifying
power management in battery-powered systems. Fast
current limiting and hysteretic control protects the LT3470
and external components against shorted outputs, even
at 40V input.
L , LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks
and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
TYPICAL APPLICATION
Efficiency and Power Loss vs Load Current
V IN
7V TO 40V
OFF ON
2.2μF
V IN BOOST
LT3470
SHDN SW
BIAS
FB
GND
0.22μF
33μH
22pF
604k
1%
200k
1%
V OUT
5V
200mA
22μF
90
80
70
60
50
40
30
V IN = 12V
1000
100
10
1
3470 TA01a
20
10
0.1
1
10
100
0.1
LOAD CURRENT (mA)
3470 TA02
3470fd
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3471 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual 1.3A, 1.2MHz Boost/Inverter in 3mm ???? 3mm DFN |
| LT3471EDD | 制造商:Linear Technology 功能描述:Conv DC-DC Dual Inv/Step Up 2.4V to 16V 10-Pin DFN EP |
| LT3471EDD#PBF | 功能描述:IC REG MULTI CONFIG ADJ DL 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 |
| LT3471EDD#PBF | 制造商:Linear Technology 功能描述:DC/DC Converter IC 制造商:Linear Technology 功能描述:IC, DUAL BOOST/INVERTER REGULATOR, DFN10 |
| LT3471EDD#TR | 制造商:Linear Technology 功能描述:Conv DC-DC Dual Inv/Step Up 2.4V to 16V 10-Pin DFN EP T/R |
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