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LT3470HTS8#TRPBF

更新时间： 2024-02-12 01:23:24
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
20页 253K
描述
LT3470 - Micropower Buck Regulator with Integrated Boost and Catch Diodes; Package: SOT; Pins: 8; Temperature Range: -40°C to 125°C

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LT3470HTS8#TRPBF 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：VSSOP,
针数：8Reach Compliance Code：compliant
风险等级：5.08其他特性：ALSO OPERATES IN ADJUSTABLE MODE FROM 1.25 V TO 16 V
模拟集成电路 - 其他类型：SWITCHING REGULATOR控制模式：CURRENT-MODE
控制技术：HYSTERETIC CURRENT MODE最大输入电压：40 V
最小输入电压：4 V标称输入电压：10 V
JESD-30 代码：R-PDSO-G8JESD-609代码：e3
长度：2.9 mm湿度敏感等级：1
功能数量：1端子数量：8
最高工作温度：150 °C最低工作温度：-40 °C
最大输出电流：0.2 A封装主体材料：PLASTIC/EPOXY
封装代码：VSSOP封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
认证状态：Not Qualified座面最大高度：1 mm
表面贴装：YES切换器配置：BUCK
温度等级：AUTOMOTIVE端子面层：MATTE TIN
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：1.6 mmBase Number Matches：1

LT3470HTS8#TRPBF 数据手册

 浏览型号LT3470HTS8#TRPBF的Datasheet PDF文件第2页浏览型号LT3470HTS8#TRPBF的Datasheet PDF文件第3页浏览型号LT3470HTS8#TRPBF的Datasheet PDF文件第4页浏览型号LT3470HTS8#TRPBF的Datasheet PDF文件第5页浏览型号LT3470HTS8#TRPBF的Datasheet PDF文件第6页浏览型号LT3470HTS8#TRPBF的Datasheet PDF文件第7页 
LT3470  
Micropower Buck Regulator  
with Integrated Boost and  
Catch Diodes  
U
FEATURES  
DESCRIPTIO  
TheLT®3470isamicropowerstep-downDC/DCconverter  
that integrates a 300mA power switch, catch diode  
and boost diode into low profile 3mm x 2mm DD and  
ThinSOTTM packages. The LT3470 combines Burst Mode  
and continuous operation to allow the use of tiny inductor  
and capacitors while providing a low ripple output to  
loads of up to 200mA.  
■
Low Quiescent Current: 26µA at 12VIN to 3.3VOUT  
■
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  
With its wide input range of 4V to 40V, the LT3470 can  
regulate a wide variety of power sources, from 2-cell  
Li-Ionbatteriestounregulatedwalltransformersandlead-  
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, simpli-  
fying power management in battery-powered systems.  
Fast current limiting and hysteretic control protects the  
LT3470 and external components against shorted out-  
puts, even at 40V input.  
– Low Ripple Burst Mode® Operation at Light Loads  
– Continuous Operation at Higher Loads  
Solution Size as Small as 50mm2  
Low Profile (0.75mm) 3mm x 2mm Thermally  
Enhanced 8-Lead DD and 1mm ThinSOT Packages  
U
■
■
APPLICATIO S  
■
Automotive Battery Regulation  
■
Power for Portable Products  
■
Distributed Supply Regulation  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
Burst Mode is a registered trademark of Linear Technology Corporation. ThinSOT is a  
trademark of Linear Technology Corporation. All other trademarks are the property of their  
respective owners.  
■
Industrial Supplies  
■
Wall Transformer Regulation  
U
TYPICAL APPLICATIO  
Efficiency and Power Loss vs Load Current  
90  
80  
70  
60  
50  
40  
30  
20  
10  
1000  
100  
10  
V
V
= 12V  
IN  
IN  
7V TO 40V  
0.22µF  
33µH  
V
BOOST  
IN  
LT3470  
SHDN  
V
OUT  
5V  
OFF ON  
SW  
200mA  
BIAS  
604k  
1%  
22pF  
FB  
22µF  
2.2µF  
GND  
200k  
1%  
1
0.1  
0.1  
1
10  
100  
LOAD CURRENT (mA)  
3470 TA02  
3470fc  
1
1234567...20

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