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LTC3427EDC#TRM

更新时间： 2024-09-24 12:59:31
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
16页 286K
描述
LTC3427 - 500mA, 1.25MHz Synchronous Step-Up DC/DC Converter in 2mm x 2mm DFN Package; Package: DFN; Pins: 6; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3427EDC#TRM 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：DFN包装说明：HVSON,
针数：6Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5 V最小输入电压：1.8 V
标称输入电压：2.4 VJESD-30 代码：S-PDSO-N6
JESD-609代码：e0长度：2 mm
湿度敏感等级：1功能数量：1
端子数量：6最高工作温度：70 °C
最低工作温度：最大输出电流：0.5 A
封装主体材料：PLASTIC/EPOXY封装代码：HVSON
封装形状：SQUARE封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：235认证状态：Not Qualified
座面最大高度：0.8 mm表面贴装：YES
切换器配置：BOOST最大切换频率：1500 kHz
温度等级：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：DUAL处于峰值回流温度下的最长时间：20
宽度：2 mmBase Number Matches：1

LTC3427EDC#TRM 数据手册

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LTC3526/LTC3526B  
500mA 1MHz Synchronous  
Step-Up DC/DC Converters  
in 2mm × 2mm DFN  
NOT RECOMMENDED FOR NEW DESIGNS  
Contact Linear Technology for Potential Replacement  
FeaTures  
DescripTion  
TheLTC®3526/LTC3526Baresynchronous,fixedfrequency  
step-up DC/DC converters with output disconnect. Syn-  
chronous rectification enables high efficiency in the low  
profile 2mm × 2mm DFN package. Battery life in single  
AA/AAA powered products is extended further with an  
850mV start-up voltage and operation down to 500mV  
once started.  
n
Delivers 3.3V at 100mA from a Single Alkaline/  
NiMH Cell or 3.3V at 200mA from Two Cells  
IN  
n
V Start-Up Voltage: 850mV  
n
n
n
n
n
n
n
n
1.6V to 5.25V V  
Range  
OUT  
Up to 94% Efficiency  
Output Disconnect  
1MHz Fixed Frequency Operation  
V > V  
Operation  
IN  
OUT  
A switching frequency of 1MHz minimizes solution foot-  
print by allowing the use of tiny, low profile inductors and  
ceramic capacitors. The current mode PWM design is  
internallycompensated,reducingexternalpartscount.The  
LTC3526 features automatic Burst Mode operation at light  
load conditions, while the LTC3526B features continuous  
switching at light loads. Anti-ringing control circuitry also  
reduces EMI concerns by damping the inductor in discon-  
tinuousmode. Additionalfeaturesincludealowshutdown  
current of under 1µA and thermal shutdown.  
Integrated Soft-Start  
Current Mode Control with Internal Compensation  
Automatic Burst Mode® Operation with 9µA  
Quiescent Current (LTC3526)  
n
n
n
n
n
Low Noise PWM Operation (LTC3526B)  
Internal Synchronous Rectifier  
Logic Controlled Shutdown (I < 1µA)  
Q
Anti-Ringing Control  
Low Profile (2mm × 2mm × 0.75mm) DFN Package  
The LTC3526/LTC3526B are housed in a 2mm × 2mm ×  
applicaTions  
0.75mm DFN package.  
n
Medical Instruments  
For new designs, we recommend the LTC3526L/LTC3526LB.  
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.  
n
Flash-Based MP3 Players  
n
Noise Canceling Headphones  
Wireless Mice  
n
n
Bluetooth Headsets  
Typical applicaTion  
LTC3526 Efficiency and Power Loss vs Load Current  
100  
1000  
100  
10  
V
IN  
= 2.4V  
90  
EFFICIENCY  
4.7µH  
80  
70  
SW  
V
OUT  
60  
50  
V
IN  
3.3V  
V
IN  
V
OUT  
1.6V TO 3.2V  
200mA  
1µF  
LTC3526  
SHDN  
GND  
POWER LOSS  
1.78M  
1M  
40  
30  
20  
10  
0
1
OFF ON  
FB  
4.7µF  
0.1  
0.01  
3526 TA01a  
0.01  
0.1  
1
10  
100  
1000  
LOAD CURRENT (mA)  
3526 TA01b  
3526bfd  
ꢀ
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中文翻译

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